Why is it possible to do compositional stoichiometry problems in your head?

Answers

Answer 1

It is possible to work on composition stoichiometry in your head because the reaction equations in composition stoichiometry are still simple.

A chemical reaction is a process in which one or more substances are converted into one or different substances and produce new products. The characteristics of a chemical reaction are a change in color or smell, gas or precipitate is formed, and there is a change in energy.

Stoichiometry is the science that studies the quantity of a substance in a chemical reaction. These substances include mass, number of moles, volume, and number of particles. In compositional stoichiometry you will understand the quantitative relationship between the masses or the amount of substance between elements in a compound. Like the amount of Nitrogen and Hydrogen substances that combine to form complex ammonia (NH3). So it allows you to calculate it in your brain because the reaction equation is still simple.

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Related Questions

is aluminum foil a heterogeneous or homogeneous mixture?

Answers

Answer:

Aluminum foil would be considered homogeneous mixture.

Aluminium foil is a homogeneous mixture rather than  heterogeneous mixture which has more than 1 phase.

What are heterogeneous mixtures?

Heterogenous mixtures is defined as a type of mixture where the composition is not uniform throughout the mixture.It consists as two or more phases. The phases are chemically distinct from each other.

As there are two or more phases present in heterogenous mixtures they can be separated by solvent extraction where in one phase is miscible with the solvent and the other phase is immiscible.

Components of a heterogenous mixtures are distinctly visible . There are two types of heterogenous mixtures, the colloids and the suspensions.These two can vary with each other with respect to particle size.They are easily separated from each other.

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What is an example of situational irony in the excerpt the open window?

Answers

The example of situational irony is “She rattled on cheerfully about the shooting and the scarcity of birds, and the prospects for duck in the winter. To Framton it was all purely horrible."

A situational irony is a literary device.

Situational irony refers to when an assumption is directly contrasted by an event that happens. It means when something opposite happens to what was being expected.

Saki uses situational irony to create humor in "The Open Window".

The character of Vera spins such an amazing tale of dead people and ghosts that Mr. Nuttel and the reader get captured in it and it is later revealed to be false and just a past time of Vera spinning tales.

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irregular shaped white piece with dull luster has a hardness of 3 and fizzes when placed in weak hydrochloric acid​

Answers

When placed in mild hydrochloric acid, carbonate, an irregularly shaped white chunk with a poor sheen and a hardness of 3, fizzes in three directions with perfect rhombohedral cleavage.

What are hydrochloric acids used for?

Hydrogen chloride (HCl) is often used as a bleaching agent to neutralise alkaline compounds in the food, textile, metal, and rubber industries. It is neutralised when released into the soil, and it hydrolyzes quickly when it comes into contact with water. hydrochloric acid, sometimes known as muriatic acid, is an aqueous solution of hydrogen chloride. It is colourless and has an unmistakable pungent odour.

How can I increase my hydrochloric acid naturally?

You can consume more hyaluronic acid by include bone broth in your diet. Additionally, consuming foods like soy products, oranges, almonds, kale, and sweet potatoes may naturally increase your body's production of hyaluronic acid because they contain nutrients. Lemons' high levels of acid encourage the creation of hydrochloric acid, which facilitates better digestion. Lemons assist your body break down the nutrients it needs and slow down meal absorption. The water also boosts your hydration, which keeps your body functioning properly.

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There are ___ x 1024 molecules and ___ x 1024 atoms in 2 moles of NH3.

** To convert molecules to atoms, you have to multiply the number of molecules (your 1st answer) by the number of atoms in a single NH3 molecule.**

Round your answer to the tenths place.

Answers

There are 1.20×10²⁴ molecules and 3.60×10²⁴ atoms in 2 moles of NH[tex]_3[/tex]. The smallest unit of matter that may be split without producing electrically charged particles is the atom.

What is atom?

The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.

Space makes up the majority of an atom. The remainder is made up of a cloud of electrons with negative charges around a positive-charged nucleus made up of protons and neutrons.

1 mole of NH[tex]_3[/tex], contains 1 nitrogen atom and 3 hydrogen atom

2 mole of NH[tex]_3[/tex], contains 2 nitrogen atom and 6 hydrogen atom

2 mole of NH[tex]_3[/tex], contains 2×6.022×10²³=1.20×10²⁴ nitrogen atom and 6×6.022×10²³=3.60×10²⁴ hydrogen atom

Therefore, there are 1.20×10²⁴ molecules and 3.60×10²⁴ atoms in 2 moles of NH[tex]_3[/tex].

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what is mass composition of compounds?​

Answers

Mass percent composition is calculated by comparing the molar mass of an element in a compound to the total molar mass of the entire compound.

Explain how migration can be used by scientists to predict the trends in the size of the human population.

Answers

The way migration can be used by scientists to predict the trends in the size of the human population because Population growth occurs when immigration rates are higher than emigration rates; the opposite occurs when emigration rates are higher than immigration rates.

How do migration patterns play in population trends?

The rate of natural rise and the results of migration make up the rate of population expansion. As a result, a high rate of natural increase can be balanced by a high level of net in-migration, and a low rate of natural increase can be.

Migration will slow down aging in wealthy areas while speeding it up in underdeveloped ones. Most nations and regions that are seeing population declines do so primarily as a result of natural change (the distinction

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A gas at STP has a volume of 37.8 L. If the temperature is raised to 295 K and the pressure is changed to 50.0 kPa, what is the new volume of the gas?

Answers

When a gas at a given temperature and pressure is changed, the new volume of the gas can be calculated using the ideal gas law.

What is the new volume of the gas?The ideal gas law states that PV = nRT, where P is pressure, V is volume, n is the number of moles of gas, R is the ideal gas constant, and T is temperature.Given the temperature and pressure of the gas, we can rearrange the ideal gas law to solve for V: V = nRT / P. In this equation, n and R are constants. Since the new temperature and pressure are given, we can calculate the new volume of the gas:V = nRT / PV = (n)(0.08206 L•atm/mol•K)(295 K) / (50.0 kPa)V = 45.49 L Therefore, the new volume of the gas at 295 K and 50.0 kPa is 45.49 L, which is an increase of 7.7 L from the original volume of 37.8 L at STP. This is due to the fact that when the temperature and pressure of a gas are increased, the volume of the gas increases as well.

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Draw all stereoisomers of 1,2-dichlorocyclohexane. Use bold andhashed wedges to indicate the stereochemistry.

Answers

Stereoisomers are isomers formed by the spacial arrangement of atoms. There are mainly two types of stereoisomers, they are enantiomers, which  are the mirror images and diastereomers.

The cis and trans isomerism is a type of configurational isomerism. Cis means on the same side and trans means on the different side. In this case it indicates different planes. In theory we can rotate the atoms between cis and trans configuration, but in real world such a change would not happen, because this process require energy.

In the case of 1,2- Dichlorocyclohexane, there are three stereoisomers. There is one cis and two trans isomers. The three isomers are

(1-S,2-R) Dichlorocyclohexane(1-R,2-R) Dichlorocyclohexane(1-S, 2-S) Dichlorocyclohexane

R-S and S-R isomers are interchangeable because they form superimposable mirror images.

So there are three stereoisomers in the case of 1,2 Dichlorocyclohexane.

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A gas at a pressure of 1 atm is in a
sealed 1.0 L container. What happens
to the pressure when the
temperature is reduced to half of the
original amount?

Answers

The pressure of a gas is directly proportional to its temperature. Hence, as temperature decreases  pressure decreases. Therefore, as the temperature reduced to half, pressure also decreases to half. Then option D is correct.

What is Gay- Lussacs law?

According to Gay- Lussacs law at constant volume, the pressure of a gas is directly proportional to the temperature.

Hence, P/T = constant.

Let P1 and T1 be the initial pressure and temperature and P2, T2 be the final quantities, then

P1/T1 = P2/T2

Given P1 = 1 atm

T1 = x ° C

T2 = x/2° C

Then P2 = P1 T2/T1

P2 = 1 × x/2° C / x° C

     = 1/2 atm

That is one half of the initial pressure.

Therefore, the pressure of the gas reduces to half when temperature is reduced to half.

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Select the correct K expression for the following reaction: 3 A(aq) + B(s) = 2 Claq) + D(aq)
a. K = 2[C][D] / 3[A]
b. K = [C]^2[D] / [A]^3[B]
c. K =[A]^3 / [C]^2[D]
d. K = [C]^2[D] / [A]^3

Answers

Option (d) is correct. According to the Equilibrium expression, the product raised to its stoichiometric coefficient divided by same of reactant.

The term equilibrium constant expresses the relationship between products and reactants of a reaction at equilibrium. It shows with respect to a specific unit. Equilibrium constant can be expressed as K. It is the ratio of velocity constant of forward reaction to velocity constant of backward reaction. It is also defined as the ratio of product to molar concentration of product to the product of molar concentration of reactants.

K = [C]2 [D] / [A]3 [B]

Now for solids its value is 1. For a heterogeneous mixture, solids and pure liquids and solvents have an activity that has a fixed value of 1.

So, K = [C]2 [D] / [A]3 

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_Ag₂NO₂ Cu → Cu(NO3)2 +_ Ag

what kind of replacement is it single or double or synthesis/combination combustion or decomposition

Answers

This is Single displacement reaction as copper is displacing silver from silver nitrate

What is Single-Displacement reaction?

A single replacement reaction, also known as a single displacement reaction, occurs when one element in a molecule is swapped out for another. Starting ingredients are always pure elements combined with an aqueous compound, such as pure hydrogen gas or zinc metal. A new aqueous compound and a different pure element will be produced as products when a replacement reaction occurs.

Cu(s) + 2AgNo3(aq) → 2Ag(s) + Cu(NO3)2(aq)

What is a Displacement Reaction?

When an atom or group of atoms in a molecule are replaced by another atom, this is referred to as a displacement reaction. For instance, copper metal is displaced when iron is added to a solution of copper sulphate.

A + B-C → A-C + B

The above equation exists when A is more reactive than B.

A and B have to be either:

Halogens where C indicates a cation.

Different metals wherein C indicates an anion.

Different kinds of single replacement reactions

The reactivity series identifies three primary categories of single replacement reactions:

Metal replacement refers to the displacement of one metal by another. When a metal displaces hydrogen gas, Hydrogen replacement is a process known as were an hydrogen replacement occurs. When a halogen engages in displacement, it is called halogen replacement.

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Which reaction would not occur as written due to the Activity Series of Metals (found in your Chemistry Reference Table)?
A. 3 Mg + 2 AlCl3 --> 3 MgCl2 + 2 Al
B. Al + NaCl --> AlCl3 + Na
C. Ca + CuCl2 --> CaCl2 + Cu
D. 2 K + 2 H2O --> 2 KOH + H2

Answers

A. 3 Mg + 2 AlCl3 --> 3 MgCl2 + 2 Al would not occur as written due to the Activity Series of Metals

Which metal is least active in the Activity Series of Metals ?

The Activity Series of Metals is a list of metals in order of decreasing reactivity. The most reactive metals are at the top of the list and the least reactive metals are at the bottom. The metal that is considered the least active in the Activity Series of Metals is gold. Gold is a very unreactive metal, meaning that it does not easily form compounds with other elements or react with other substances. This is why gold is often used in jewelry and other decorative items, as it does not tarnish or corrode easily. Other metals that are considered to be relatively unreactive and are also located towards the bottom of the activity series include platinum and silver.

It is worth noting that the activity series of metals is not a definitive and absolute list. It is based on a specific set of conditions, such as the presence of a certain solvent or the concentration of certain ions, and the activity of the metals may change in different environments.

Additionally, the activity series can be useful to predict the outcome of displacement reactions, in which a more active metal can displace a less active metal from a compound. For example, zinc, a more active metal than copper, can displace copper ions from a copper sulfate solution to form zinc sulfate and copper metal.

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9.0 mol Na2S reacts with 8.0 mol
CuSO4 according to the equation below:
Na2S + CuSO4

Na2SO4 + CuS
Considering only the 8.0 mol CuSO4,
how many moles of CuS form?
? mol CuS

Answers

Based on the mole ratio of the given chemical reaction, 8 moles of CuS are produced.

What is the mole ratio of the given equation?

The mole ratio of an equation is the ratio in which the reactants in a given chemical reaction react with themselves to form products.

Both reactants and the products are present in a given mole ratio as given by the equation of the reaction.

The mole ratio of the given equation of reaction is obtained from the equation of the reaction as follows:

Na₂S + CuSO₄ → Na₂SO₄ + CuS

The mole ratio of CuSO₄ toCuS is 1 : 1

Hence, 8 moles of CuS are produced.

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what is the percentage mass of oxygen in barium phosphate? ​

Answers

21.3 % is your answer

This chemical equation is balanced.
2Na+ 2H₂O → 2NaOH + H₂
How does this equation show the conservation of matter in a chemical
reaction?
OA. The reactants and products are substances that each have equal
numbers of atoms.
OB. The reactants and products have the same kinds of atoms and
equal numbers of each kind.
OC. The number of substances in the reactants is equal to the number
of substances in the products.
OD. The coefficients and subscripts in the reactants are the same as in
the products.

Answers

This chemical equation is balanced. 2Na+ 2H₂O → 2NaOH + H₂ this equation show the conservation of matter in a chemical reaction by the number of substances in the reactants is equal to the number of substances in the products. Therefore, option C is correct.

What is the conservation of matter ?

The law of conservation of matter states that the same amount of matter exists before and after the change of reaction, none is created or destroyed in the reaction.

According to the law of conservation of mass, the total mass of the products in a chemical reaction is exactly equal to the total mass of the reactants.

Thus, option C is correct.

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Germanium ( Ge ) is a solid where the atoms are bonded to each other much like those of carbon in a diamond

Answers

Germanium will be having highest melting point being exist in solid

What is Germanium?Germanium itself is classified as a metalloid. It's hard at room temperature and looks metallic with a shiny silvery grey finish, but it's a semiconductor, without some of the key properties of a metalgermanium (Ge), a chemical element between silicon and tin in Group 14 (IVa) of the periodic table, a silvery-gray metalloid, intermediate in properties between the metals and the nonmetalsThe beneficial effects of germanium administration described in the literature, concern its use to prevent or treat cancer, HIV infection, autoimmune diseases, arthritis, and senile osteoporosisGermanium is a chemical element with the symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon.

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We’re are earths outer layer made of solid hard rock

Answers

The lithosphere is the solid, outer part of the Earth, extending to a depth of about 100 kilometers (62 miles). The lithosphere includes both the crust and the brittle upper portion of the mantle. The lithosphere is both the coolest and the most rigid of Earth's layers.

If i have an unknown quantity of gas at a pressure of 1. 2 atm, a volume of 31 liters, and a temperature of 87 0 c, how many moles of gas do i have?.

Answers

The moles of gas that I have If I have an unknown quantity of gas at a pressure of 1.2 atm, a volume of 31 liters, and a temperature of 87 0 C is 1.26 moles.

To determine the mol of gas, we can use Mendeleev-equation Clapeyron's:

pV = nRT

Where:

n is the number of moles = ?

p is pressure = 1.2 atm

V is volume = 31 liters

T is temperature = 87°C ⇒ (273+87) = 360 K

R is the constant of all gases = 0.082 L.atm/mol.K

So, we can define the n number as:

n = pV/(RT)

n = (1.2) (31) / (0.082) (360) =

1.26 moles

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nuclear decay that can be stopped by skin or paper.
a. true
b. false

Answers

It is false that nuclear decay that can be stopped by skin or paper.

Most types of nuclear decay, such as alpha and beta decay, cannot be stopped by skin or paper. These types of decay involve the emission of particles (alpha particles or beta particles) that can penetrate through such thin materials. Gamma decay, on the other hand, involves the emission of high-energy electromagnetic radiation, which can be stopped or absorbed by thicker materials such as lead or concrete.

It's important to note that the ability of a material to stop or absorb radiation depends on its atomic structure and density, and the thickness of material.

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how many atoms are there in 2 moles of oxygen molecules?

Answers

There are 12.044 × 10^23 oxygen molecule present in 2mole of oxygen molecule.

According to the context, the word may as well as may not encompass ions that meet this requirement. A molecule is a collection of two as well as more atoms linked together by the attractive forces described as chemical bonds.

The lowest unit into which a substance could be divided while still being the same substance would be a molecule. It is composed of two as well as more atoms which are chemically bonded to one another.

1 mole of oxygen = 1 O2 molecule

2 mole = 2 O2 molecule = 2 × 6.022 × 10^23 molecule = 12.044 × 10^23 molecule

Thus, 2 mole of oxygen will have 12.044 × 10^23 molecule

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which pictogram is not mandatory for chemical labels and sds?
Explosive (Symbol: exploding bomb)
Flammable (Symbol: flame)
Oxidising (Symbol: flame over circle)
Corrosive (Symbol: corrosion)
Acute toxicity (Symbol: skull and crossbones)
Hazardous to the environment (Symbol: environment)
Health hazard/Hazardous to the ozone layer (Symbol: exclamation mark)
Serious health hazard (Symbol: health hazard)
Gas under pressure (Symbol: gas cylinder)

Answers

SDS’s are not denote for consumers. An SDS affects the hazards of working with the material in an occupational fashion.

For example, an SDS for paint is not highly relevant to someone who uses a can of paint once a year but is extremely important to someone who uses that paint 40 hours a week or per day 5-6 hours.

A safety data sheet (SDS), first known as a material safety data sheet) is an important information source for eliminating or minimizing the risks linked with the use of hazardous chemicals (hazardous substances and/or dangerous goods) in workplaces.

While the GHS uses a total of 9 pictograms, OSHA will only impose the use of eight.

The environmental pictogram is not compulsory but may be used to provide additional information.

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Calculate the volume of gas, in L, occupied by 1.74 moles of SF6 (g) at 273 K and 1 atm

Answers

The volume of gas is 3,949.31 litre, occupied by 1.74 moles of SF6 (g) at 273 K and 1 atm.

What is an ideal gas law ?

The ideal gas law is also called as perfect gas law. It is the relation between the pressure P, volume V, and temperature T of a gas.  

Given:

Volume of gas = ?

Number of moles (n) = 1.74 moles

Temperature (T) = 273K

Pressure (P) = 1 atm

R (gas constant) = 8.314

By an ideal gas equation

PV = nRT

By putting above value in ideal gas equation, we get

1 × V = 1.74 × 8.314 × 273

V = 3,949.31 litre

Thus, The volume of gas, in L is 3,949.31 litre, occupied by 1.74 moles of SF6 (g) at 273 K and 1 atm.

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Chemit heated a olid red ubtance in a tube, the ubtance made a metallic liquid and a ga, which tatement bet decribe what happened to the red ubtance?

Answers

This is based on the process of chemical decomposition due to which experiment shows the red substance.

Compounds with an oxygen–oxygen single bond are categorised as peroxides. Hydrogen peroxide represents the simplest type of this group of chemicals.

It is characterized by its tendency to decompose, caused by the nature of its unstable peroxide bond. It must be stored with a stabilizer, such as acetanilide or similar organic materials.

The solution is not flammable, regardless of its concentration. However, hydrogen peroxide is a strong oxidizing agent, due to its chemical structure and unpaired electrons.

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What is the formula for speed?

Answers

Answer:

distance/time is the answer

Which type of soil can hold absorb more water and why?

Answers

Clayey soil can absorb more water due to its comparatively large pore size and ability to hold the water molecules.

Soil is composed of components such as minerals, gas, water and organic matter. It is divided into three components viz. sand, silt and clay.

The ability of a soil to absorb water depends upon its pore size. In clayey soil, it has relatively large pore size so the water molecules can be easily absorbed and stored in the pores unlike sandy soil.

Clay particles have cohesive force between them which helps to hold water molecules together, whereas this cohesive force is absent in sandy soil.

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1. Define acids and bases in terms of their chemical properties2. Compare and contrast the common properties of acids and bases.

Answers

Acids are chemical substances which are characterized by a sour taste in an aqueous medium. They have the tendency to turn blue litmus red. On the other hand, bases are chemical substances which are characterized by a bitter taste and are slippery to touch. Some bases are soluble in water, while others are not.

Answer: Acids are chemical substances which are characterized by a sour taste in water medium. Bases are the chemical substances which are characterized by a bitter taste and are slippery to touch.

Explanation:

Acids have tendency to turn blue litmus to red. Some bases are soluble in water, while others are not. Water soluble bases are known as alkalis. They have tendency to turn red litmus to blue.

Acids and bases react with a wide range of chemical compounds to form salts.

Chemical properties of the following:

Reaction of acids and bases with metals. When a metal reacts with an acid, it generally displaces hydrogen from the acids. This leads to the evolution of hydrogen gas. The metals combine with the remaining part of acids to form a salt. Alkalis (bases that are soluble in water) react with metals to produce salt and hydrogen gas.

For example, the reaction of sulphuric acid with zinc.

H₂SO₄ ⁺ ZN ⇒ ZnSO₄ ⁺ H₂

For example, reaction of zinc with sodium hydroxide.

NaOH ⁺ Zn ⇒ Na₂ZnO₂ ⁺ H₂

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Once the two atoms are bonded together, can you move the two atoms as a pair?

Answers

Yes, you can move the two atoms as a pair. This is because the bond between them is a covalent bond,

What is covalent bond?

A covalent bond is a type of chemical bond that involves the sharing of one or more pairs of electrons between two atoms. In a covalent bond, the atoms are held together by the attractive forces between the atoms’ shared electrons.

Covalent bonds are much stronger than ionic bonds, and occur between atoms in the same or different molecules. Examples of covalent bonds include the bonds between oxygen and hydrogen in water molecules and the bonds between carbon atoms in diamond.

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How did the visigoths and Ostrogoths maintain a Roman style government

Answers

The First Germanic War and the crucial Battle of Anzio (378 CE), in which the Goths led by Fritigern overthrew Rome due to their oppression at the feet of Romans provincial rulers, were sparked

What is meant by provincial thinking?

adjective. When you refer to someone or anything as provincial, you are expressing your disapproval of them because you find them to be monotonous and out of date. [disapproval] He made the choice to update the organization's rural image. Synonyms include local, exclusive, simpleminded, and uncultured More the opposites of provincial.

What does a provincial life entail?

a member of or associated with a province. 2 pertaining to, or associated with, the provinces; regional. possessing beliefs and attitudes that are thought to be typical of country dwellers; simple or undeveloped; constrained.

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energy released as a gas changes to a liquid?

Answers

As a gas condenses to a liquid it releases the thermal energy it absorbed to become a gas. During this process the temperature of the substance does not change.

What is energy changes?

Energy changes  is the process of changing energy from one form to another.

Energy is used to break bonds in reactants and energy is released when new bonds form in products. Energy may change form during a chemical reaction but the same amount of energy remains after the reaction as before. The law of conservation of energy states that matter cannot be created or destroyed.

Therefore, the conversion of one form of energy into another is energy changes.

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An umbrella i placed in a drink holding a volume of punch equal to 7ML. The height of the punch roe to 10 ML. If the ma of the umbrella wa 27G, what wa it denity?

Answers

An umbrella is placed in a drink holding a volume of punch equal to 7 mL. The height of the punch rose to 10 mL. If the mass of the umbrella was 27 g, the Density of the umbrella is 9 g/mL.

Given that :

The mass of the umbrella = 27 g

The volume of the umbrella :

= height of the punch rose - volume of the punch

= 10 mL - 7 mL

= 3 mL

The density of the umbrella is give as :

Density = mass / volume

Density = 27 g / 3 mL

Density = 9 g/mL

Thus, the density of the umbrella is 9 g/mL.

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when must all diagnoses, procedures, and services selected on the encounter form be documented in the patient's medical record? por que el trabajo social deberia estar en el codigo sanitario Herzberg hypothesized that are two different sets of factors governing job satisfaction and job dissatisfaction. These are ___ factors and ___ factors. a potential energy source from oceans is ________. a) solar reflection b) lightning strikes in salt water c) ocean thermal energy d) chemiluminescent bacteria e) magnetic field generators Brianna rolls two number cubes labeled 1-6. What is the probability that Brianna rolls a sum of 5? Which of the following characteristics is not associated with a villanelle? A rhyme scheme that follows an ABA pattern A shift, or a change in tone, at some point in the poem Nineteen lines, including five tercets and a quatrain Repetition of two phrases throughout the poem if you wanted to design an artificial chromosome that would be mitotically stable in a yeast cell, what would be the essential dna elements that you would need to include?: In a double-slit experiment, the slit separation is 300 times the wavelength of the light. What is the angular separation (in degrees) between two adjacent bright fringes? in some organizations, which two plans are considered to be one plan, known as the business resumption plan? 2. The tests within the API 20E tubes may be performed under? A.aerobic conditions B.anaerobic conditions C.either aerobic or anaerobic conditions In the film Empty Spaces what Joumey were the soldiers ordered to accomplish? a. Going to the funeral of a colleague b. Taking part in a recruiting effort c. Finding a friend who deserted d. Going to the wedding of a colleague Consider time to failure T following a uniform distribution over (0,a]. (Note: DO NOT forget the domain of each of the following functions) (a) Find the cumulative distribution function F(t) (b) Find the reliability function R(t) (c) Find the hazard rate h(t). Is it a decreasing, constant, or increasing failure rate? (d) What is the mean time to failure (MTTF), and median time to failure (tmedian)? (e) Find p (T> a) Does uniform distribution have memoryless property? How do the events in Chapter 5 of Robinson Crusoe show the dominance of nature over civilization? Use at least two quotes from the text to support your answer. the first step in a vulnerability assessment is to determine the assets that need to be protected. mary was preparing to exercise and her heart rate went from 56 to 84 beats per minute. most of this effect can be attributed to historically, landfills were the cheap and easy way to deal with solid waste. because of rising land prices and increasing costs of A student is studying a sample of neon in a container with a moveable piston (this means the container can change in size). If the sample in the container is initially at a pressure of 757.2 torr when the container has a volume of 81.4 mL, what is the pressure of the gas when the piston is moved so that the volume of the container becomes 132.5 mL? Round your answer to the nearest 0.01 and include units! Air at 27 C, 1 atm and a volumetric flow rate of 40 m^3/min enters an insulated control volume operating at steady state and mixes with helium entering as a separate stream at 120 C, 1 atm and a volumetric flow rate of 25 m^3/min. The mixture exits at 1 atm. Assuem ideal gas behavior, steady-state processes, with M = 28.97, cpair = 1.008 kJ/kg K, and MHe= 4.003, cpHe = 5.96 kJ/kgK. a simulation clock keeps track of how long the simulation has run in real time, True or False The nurse understands the role of the National Institute of Nursing Research (NINR) in the American Recovery and Reinvestment Act of 2009 when stating: (Select all that apply.)a. "The NINR was not involved in the recovery act."b. "The act was created to assist with the economic recovery of the country."c. "The act includes measures to modernize our national infrastructure, including health care."d. "The act was created to take control away from Americans."e. "The act was created to modernize our national infrastructure excluding health care."