i need help from the problem below

I Need Help From The Problem Below

Answers

Answer 1

Answer:

I won't say I'm confident with this because I'm not sure if the second one is even correct, but I hope I helped you and didn't make things worse lol.

I Need Help From The Problem Below

Related Questions

Carbon dioxide emissions have been linked to increased air pollution. The following table lists some possible public policies aimed at reducing the amount of carbon dioxide in the air

Answers

Some possible public policies aimed at reducing the amount of carbon dioxide in the air is that companies should make use of new emissions technology to avoid air pollution.

What is air pollution?

What is air pollution?Air pollution is the release of substance that are dangerous or harmful to human health into the environment.

Excessive release of carbon dioxide into the atmosphere causes pollution and deplete our ozone layer.

One of the policy government have out in check is that all companies should purchase or make use of new emissions technology to avoid polluting the environment and causing harm to human health.

Therefore, some possible public policies aimed at reducing the amount of carbon dioxide in the air is that companies should make use of new emissions technology to avoid air pollution.

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Many policies are established to control air pollution like Tradable Permit System, Corrective Tax, Command-and-Control Policy, and Corrective Subsidy.

What are air pollution control policies?

A corrective subsidy is a policy that encourages people to plant trees. Command-and-Control Policy or the regulation policy limits the emission of the particles that affect and harms the air and mandates the use of emissions-reducing technology.

Corrective Tax policy discourages negative effect behavior and imposes Pigovian tax that helps in achieving optimal pollutants. Tradable Permit System allows the figuring of the individual pollution emission.

Therefore, public policies are aimed to reduce air pollution through various means.

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60 points please help me i will appreciate it!

Answers

Answer:

[tex]\huge\boxed{\sf n = 7.36 \ mol}[/tex]

Explanation:

Given Data:

Volume = v = 42.19 L

Pressure = P = 428.792 kPa = 4.23 atm

Temperature = 27.871 °C + 273 = 300.871 K

R = the gas constant = 0.08206 L atm K⁻¹mol⁻¹

Required:

No. of moles = n = ?

Formula:

nRT = Pv

Solution:

Rearranging formula

[tex]\displaystyle n = \frac{Pv}{RT} \\\\n = \frac{(4.23)(42.19)}{(0.08206)(300.871)} \\\\n = \frac{181.467}{24.69} \\\\n = 7.36 \ mol\\\\\rule[225]{225}{2}[/tex]

Does electronegativity affect replacement reactions

Answers

Elecetronegativity will affect the replacement reactions as it attracts the bonded electrons towards itself.

What is replacement reaction?

Replacement reactions are those reactions in which replacement of any one element from any compound is done by any other element.

Electronegativity is the attracting power of any element to hold the bonded electron towards itself so that they will bear a partial negative charge on itself. If in any reaction replacement of anion is required and any compound have more electronegative element which bounded the bonded electron strictly and will not allow the formation of anion then it affects the activity of the reaction.

Hence electronegativity affect the replacement reactions.

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What is the role of meteorites in the formation of life?

Answers

Answer:

Meteorites are consensually considered to be involved in the origin of life on this Planet for several functions and at different levels: (i) as providers of impact energy during their passage through the atmosphere; (ii) as agents of geodynamics, intended both as starters of the Earth’s tectonics and as activators of local hydrothermal systems upon their fall; (iii) as sources of organic materials, at varying levels of limited complexity; and (iv) as catalysts.

Explanation:

is respiration like burning?Explain your answer.​

Answers

Answer:

Yes

Explanation:

The process of respiration and burning are similar in the following ways: Both respiration and burning require oxygen. Energy is released during both respiration and burning. The products produced (carbon dioxide and water) are the same for both respiration and burning.

Answer:

Yes

Both Respiration and Burning uses oxygen. Both Respiration and Burning produces energy. Both Respiration and Burning gives out carbon dioxide as the end product. The overall chemical reactions of both Respiration and Burning are the same.

Explanation:

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are frosted flakes healthier than fruit loops?

Answers

No

Frosted flakes are rich in carbohydratesCarbohydrates are good for energy but they are life risky and can cause diabetes.Where as fruit loops are rich in several minerals and vitamins So fruit loops are healthier

You’re sitting at a car race and the cars sound differently when they approach as opposed to when they are moving away. Why might this be true? Explain in detail.

Answers

Answer:

I have no clue this qestion is kinda stumping but it a really good question it got me thinking but i don't know if there is a right answer

Explanation:

I don't know

Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2
Ag How many grams of Cu are needed to react with 262g moles of
AgNO3?

Answers

Given the following equation; Cu + 2AgNO3 = Cu(NO3)2 + 2Ag, 48.97 grams of Cu are needed to react with 262g of AgNO3.

How to calculate mass of substances?

The mass of a substance can be calculated using the following steps:

Cu + 2AgNO3 = Cu(NO3)2 + 2Ag

1 mole of Cu react with 2 moles of AgNO3

Molar mass of AgNO3 = 169.87 g/molMolar mass of Cu = 63.5g/mol

moles of AgNO3 = 262g/169.87g/mol = 1.54mol

1.54 moles of AgNO3 will react with 0.77 moles of Cu.

mass of Cu = 0.77 × 63.5 = 48.97g

Therefore, given the following equation; Cu + 2AgNO3 = Cu(NO3)2 + 2Ag, 48.97 grams of Cu are needed to react with 262g of AgNO3.

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how many elements are in c17h19no3

Answers

Answer:

Morphine contains total 40 atom(s); 19 Hydrogen atom(s), 17 Carbon atom(s), 1 Nitrogen atom(s) and 3 Oxygen atom(s).

Explanation:

Determine the ka of the weak acid ha whose conjugate base has kb 2. 9 × 10−8

Answers

Answer:  [tex]3.45*10^{-7}[/tex]

Explanation:

we can use the equation Ka * Kb = Kw

Kw is the equilibrium constant and always equals to [tex]1*10^{-14}[/tex]

we plug the given numbers into the equation, [tex]Ka * (2.9*10^{-8} )=(1*10^{-14} )[/tex]

now we just solve for Ka, [tex]Ka=\frac{1*10^{-14} }{2.9*10^{-8} }[/tex]

which gives us the value, [tex]Ka=3.45*10^{-7}[/tex]

hope this helped! ♡

The ka of the weak acid ha, whose conjugate base has kb 2. 9 × 10⁻⁸ is 3.45 × 10⁻⁷.

What is ka value?

Ka value is the equilibrium constant found by the dissociation of acid.

By the equation

[tex]\rm ka \times kb = kw[/tex]

where kb = [tex]2.9 \times 10^-^8[/tex]

kw = [tex]1 \times 10^-^4[/tex]

Now, putting the values in the equation

[tex]1 \times 10^-^1^4 = ka \times 2.9 \times 10^-^8\\\\ka = \dfrac{1 \times 10^-^1^4}{2.9 \times 10^-^8} \\\\ka = 3.45 \times 10^-^7[/tex]

Thus, the ka of the weak acid ha, whose conjugate base has kb 2. 9 × 10⁻⁸ is 3.45 × 10⁻⁷.

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Which of the following statements about minerals and ores is true?

Answers

Answer:

please give a photo I can't now to help u

Answer:

they have a crystalline structure is the correct answer <3

Explanation:

Which plants have a fibrous root system? (Select all that apply.) grass dandelion carrot corn

Answers

The plants which have a fibrous root system are

GrassCorn

What is a fibrous root?

A fibrous root system is a root system which consists of large mass of roots of nearly equal size

Some few examples of plants with fibrous roots system are as follows:

Rice plantsSugarcane plantsOnionsPinesAsparagusMaize

In conclusion; the plants which have a fibrous root system are grasses and corns.

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Distinguish between the law of conservation of mass and the law of constant proportion

Answers

Laws of conservation of mass - It states that mass can neither created nor destroyed. The total mass before and after a chemical reaction remains constant. Laws of constant proportion - It states that in a chemical substance the elements are always present in a fixed proportion by their mass.

Suggest the pH of the solution made when potassium oxide dissolves in water.​

Answers

It gets basic

ie ph>7 for basic solutions

Which of the following compounds would be expected to have the strongest ionic bonds?
the compound that has the largest ions with the greatest charge
the compound that has the largest ions with the least charge
the compound that has the smallest ions with the greatest charge
the compound that has the smallest ions with the least charge

Answers

Answer:

the compound that has the smallest ions with the greatest charge

The compound that has the smallest ions with the greatest charge will have the strongest ionic bonds. Therefore, option C is correct.

What are ionic compounds?

Ionic compounds can be defined as solids formed by closely packed ions of opposite charge. An Ionic compound is commonly formed when metal combines with non-metal.

In ionic compounds, the ions are held together by ionic bonds. The ions are created by accepting or losing electrons in order to get their nearest noble gas configuration. In a reaction, the metals have a tendency to lose electrons to complete their octet while non-metals will gain electrons to fill their octet.

An ionic bond or electrovalent bond is a type of linkage generated from the electrostatic attraction between oppositely charged ions. Such a bond produces when the valence electrons of one atom are transferred permanently to another.

The more the charge on the ions and the smaller the ions stronger the ionic bond will be formed.

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Two groups of students tested to compare their speed working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.
Independent variable:

dependent variable:

controlled variable:

Answers

Answer:

The independent variable is the calculator

The dependent variable is the speed of solving the problem.

The constant variable is the same set of problems that were assigned to two groups of students.  

The dependent variable is the one that is being tested by experimentation. The dependent variable depends on the independent variable.  

The independent variable can b changed by the experimenter whereas the constant variable remains unchanged throughout the experiment.  

Answer:

Controlled Variable: The same math problems

Dependent Variable: The amount of time taken to answer

Independent Variable: One group using calculators and the other group not using calculators.

Explanation:

The dependent variable is the variable being tested and the independent variable is what is being changed. The controlled is what is staying the same.

Why are xrays used to probe the crystal structure of a material

Answers

Answer:

Because X-rays have wavelengths similar to the size of atoms

X rays are used to probe the crystal structure of a material because this have same wavelength as atoms of crystal have.

What are x rays?

X rays are the type of electromagnetic radiations and it is produced when the fast moving electron collide with the target anode and sudden deceleration takes place.

X rays have the high energy so that it easily penetrate in any crystal molecule as they also have same wavelength as atoms of the crystals have.

Hence due to high energy and same wavelength was of atoms of crystal it is used to probe the crystal.

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When hydrogen is used in a fuel cell, the only waste product is/are __________

Answers

Answer:

water

Explanation:

The only by-products from combining hydrogen and oxygen in a fuel cell are water and heat, so hydrogen fuel cells do not emit greenhouse gases or other air pollutants as engines that use fossil fuels do.

Help me describe air pollution and its causes.

Answers

Here is a Answer to your question:

Air pollution is caused by solid and liquid particles and certain gases that are suspended in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes and wildfires. The solid and liquid particles suspended in our air are called aerosols.

Here are the 8 causes of air pollution?

1: The Burning of Fossil Fuels

2: Industrial Emission

3: Indoor Air Pollution

4: Wildfires

5: Microbial Decaying Process

6: Transportation

7: Open Burning of Garbage Waste

8: Construction and Demolition

I am sorry if this was not helpful

Hope this was helpful

_____is the rate of change of displacement​

Answers

Answer:

Velocity

Explanation:

The rate of change of displacement is velocity.

Answer:

Velocity

Explanation:

The rate of change of displacement with time is called velocity.

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The video uses visual representations to show the generation and travel of radio waves. What did you learn about radio waves from these representations?

Answers

Answer: I learned that almost every technology has radio waves that spread out from their sources.

Explanation:

a total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. the gram-formula mass of sodim notrate is 85 grams per mole. determine the molarity of the solution

Answers

Answer:

1.4 moles/ 2.0 L= 0.7 M

Explanation: Molarity= moles of solute/ Liters of solution

therefore just plug the numbers in and you'll find the molarity to equal. 0.7


the [-oh) in a sample of egg whites is 6.3 x 10-7 m. what is the [h3o+] in these
egg whites?

Answers

The hydrogen ion concentration [H3O+] in an egg white containing 6.3 × 10-⁷M of [OH-] is 1.5 × 10-⁸M.

How to calculate [H3O+]?

The hydrogen ion concentration of a solution can be calculated as follows:

pOH = - log [OH-]

pOH = - log [6.3 × 10-⁷M]

pOH = - [-6.2]

pOH = 6.2

Since pOH + pH = 14

pH = 14 - 6.2

pH = 7.8

pH = - log [H3O+]

7.8 = - log [H3O+]

[H3O+] = 10-⁷:⁸

[H3O+] = 1.5 × 10-⁸M

Therefore, the hydrogen ion concentration [H3O+] in an egg white containing 6.3 × 10-⁷M of [OH-] is 1.5 × 10-⁸M.

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Which statement describes the BEST example of animals avoiding competition?
A.
A bee pollinates a flower.

B.
Cheetahs and lions feed on the same prey.

C.
A bird finds a spot in a tree to put a nest.

D.
A family of deer leave a crowded area of forest.

Answers

Answer:

D

Explanation:

If the deer leave the forest then they are avoiding compotation

D that’s the answer it avoiding the competition

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A proton donor is a chemical that

a) protongenic

b) protophilic

c) amphoteric

d) amphiprotic​

Answers

Answer:

Amphiprotic

Explanation:

These chemicals are too independentThey can either donate or accept a lone pair of protons .So they can act as base and acid

How many moles of oxygen are required to burn in one mole of C4H8 completely?

Answers

Answer:

6 moles of oxygen is required to burn 1 mole of C4H8 completely

Explanation:

reaction is C4H8 + (6)O2 ------ (4)CO2+ (4)H2O

you get CO2 and H2O whenever you burn hydro carbons. so C4H8 + O2 = CO2 + H2O. Then, you must balance the equation: C4H8 + 6O2 = 4CO2 + 4H2O

burning 1 mol of butene gets you 6 mol of O2

what are the advantages and diadvantages of preparing a standard solution?​

Answers

Answer:

advantages:

. The error due to weighing the solute can be minimised by using concentrated stock solution that requires large quantities of solute. 2. We can prepare working standards of different concentrations by diluting the stock solution which is more efficient since consistency is maintained

3. Some of the concentrated solutions are more stable and are less likely to support microbial growth than working standards used in the experiments.

Compare and contrastthe properties of the individual elements that combine to make salt with the compound salt

Answers

Answer:

I believe is the correct answer

Explanation:

NaCl made,2(NaCl)or2NaCl,Na2Cl,NaCl2 all represent compounds

what is the best "determiner" for identifying if it is a metal?
I need the answer please

Answers

Answer:

determiner is a word that introduces a noun or provides information about the quantity of a noun.

Explanation:

The metal cans are recyclable. (determiner before the adjective describing a plural noun to specify which cans)

Metal cans are recyclable. (no determiner because it's optional for plural nouns and noun phrases)

Hello people ~
Ignition temperature is the lowest temperature at which a substance catches fire. Identify the correct option regarding the ignition temperature of a good fuel.

A. Ignition temperature below room temperature

B. Ignition temperature above room temperature

C. Ignition temperature equal to 100∘C

D. Ignition temperature equal to room temperature

Answers

B is your answer

If the ignition temperature of a fuel is lower than the room temperature, then it can catch fire very easily.

Therefore for an ideal fuel, the ignition temperature should be higher than the room temperature.

let's observe one by one

#1

If ignition temperature is below room temperature the fuel can catch fire at once.

No

#2

Ignition temperature above room temperature is applicable as the fuel won't catch fire easily

True

#3

It's boiling point of water not fuels

False

#4

Equal to room temperature is same as first one can cause damage

No
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Write an equation that represents the line use exact numbers A garden table and a bench cost $668 combined. The garden table costs $82 less than the bench. What is the cost of the bench? Factor b12 + 8.help fast pls Guys, Im giving you at least 100 points for you to answer to my angles, triangles, and quadrilaterals word problem homework package. So guys, please listen up and pay attention to me without ignoring my angles, triangles, and quadrilaterals word problem homework package for no reason! :D Please help me to find the missing angle measures given 3 variables of an each scalene triangle. Please answer to my geometric word problem questions as soon as possible with the best efforts and the best step-by-step explanations in order to get the Brainliest award of all the time! :D Well anyways, guys, good luck on finding the missing angle measures given 3 variables of an each scalene triangle of my angles, triangles, and quadrilaterals word problem homework package in order to get the best Brainliest award of all of the time, and I will check the answers to see if its appropriate for me. :) please help me! I will make whoever answers brainiest! please help it's for a test!Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.Match each equation to the value of a that makes the equation true.103426(2a a + 1) = 244 + 3(a + 2) = 163a 2a 4 = 02a + 3(a + 1) = 8 algebric expression 2f + 14 3 + 7f - 10 5. How much does water take up humans body Which condition feeds a tropical storm as it develops into a hurricane? What is the purpose of DNA replication? to divide a genome in half newly replicated daughter cells have instructions to make proteins to prevent tRNA synthesis to make new mutant offspring Simply the expression 3(2y - 8) - 2y(5-y) what sort of things does the government interfere with businesses today? In other words, what does the government require of businesses today? Please help! this assignment locks at 12 and i will give brainlest! cris cette phrase au i pass compos:"lI met son manteau." How much is 75% of 10 liter of milk? what are the major financial statement ,and what is the difference between financial statement and financial reporting What is the following quotient? What is the value of x? a=1/2(2x6)x4 i need helppp !! Please help! simplify the expression: For a laboratory assignment if the equipment is working the density function of the observed outcome