7. The relative atomic mass of lithium is 6.94 and its atomic number is 3. Which one
statement below can be correctly deduced from this information?

A) All ions of lithium contain three electrons.
B) All atoms of lithium contain equal numbers of electrons and neutrons.
C) Some atoms of lithium contain more than three electrons.
D) All atoms of lithium contain three protons.

Answers

Answer 1

Lithium is an alkali metal with the atomic number = 3 and an atomic mass of 6.941 g/mol. All ions of lithium contain three electrons.  

What Is lithium the drug used for?

Lithium is a type of medicine known as a mood stabiliser. It's used to treat mood disorders such as: mania (feeling highly excited, overactive or distracted) hypo-mania (similar to mania, but less severe)

What lithium does to the brain?

At a neuronal level, lithium reduces excitatory (dopamine and glutamate) but increases inhibitory (GABA) neurotransmission; however, these broad effects are underpinned by complex neurotransmitter systems that strive to achieve homeostasis by way of compensatory changes.

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Related Questions

A solid form of matter in which there is long range repeating order is called ________

Answers

Answer: A solid form of matter in which there is long-range repeating order is called crystalline.

Explanation:

A solid is crystalline if it has long-range order. Once the positions of an atom and its neighbors are known at one point, the place of each atom is known precisely throughout the crystal.

Carbon disulfide is a linear molecule with two double bonds. According to valence bond theory, which orbitals on carbon are used for pi bonding?

Answers

According to valence bond theory, 2s and 2p orbital of carbon atom will be formed pi bonding.

One of it's two fundamental theories created to use quantum mechanics to describe chemical bonding would be the valence bond theory, and molecular orbital theory.

Eight valence electrons should be used to generate two double bonds in the CS2 molecule. As a result, it uses up eight of the 16 valence electrons. These valence electrons are located in the carbon atom's 2s and 2p orbitals, where they join to create a double bond.

Therefore, according to valence bond theory, 2s and 2p orbital of carbon atom will be formed pi bonding.

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(RLLY NEED HELP) What is caused by friction between two objects?
Static electricity

Dry air

A circuit

Moist air

Answers

second one i think.

Comparison of IR of starting materials (given in the lecture) to IR of product What indicates the purity of the product on the IR spectrum of product

Answers

The Old Way

If the peaks matched those of known impurities, they could use the intensities to calculate the purity of the ester.

What is IR Spectrum ?

IR-spectroscopy is perhaps the most frequently used technique in the organic chemistry labs at PSU. It is routinely used to identify products and to verify that an experiment has succeeded.

An IR -spectrum routinely shows peaks from the range of 3600 to 500 cm-1. IR -frequencies correspond to the frequencies of molecular vibrations. The IR spectrum can be used to show that there is not any starting material left by the loos of the alkene bond(C=C) between 1500cm^-1 and 1800cm^1 from 1-hexene and the addition of a hydroxyl group(-OH) of 2-Hexanol between 3000cm^-1 and 3300cm^-1.

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Monosaccharides are the smallest building blocks of sugars and have similar chemical compositions. Considering that simple sugars are a component of carbohydrates, what is the general chemical composition of monosaccharides

Answers

Answer:

See below

Explanation:

Monosaccharides:They are the simplest sugars.They can not be hydrolyzed.They are sweet in taste.They are soluble in water.They have the general formula of [tex]C_n(H_2O)_n[/tex]Chemical composition:They are composed of:CarbonHydrogenOxygen

[tex]\rule[225]{225}{2}[/tex]

C3H8 has a boiling point than C2H6

Answers

Answer:

C₃H₈ has a higher boiling point than C₂H₆

Explanation:

The boiling point is the temperature at which the intermolecular bonds holding molecules in liquid form are overcome and change the state into a gas. C₃H₈ experiences stronger intermolecular bonds then C₂H₆ because it has more carbons. While the strength of each bond is the same between the two molecules, C₃H₈ has more opportunities to create these bonds due to the higher carbon count.  The more bountiful the intermolecular bonds, the more energy is needed to overcome them all. Thus, C₃H₈ has a higher boiling point.

Influence of bromine and iodine chemistry on annual, seasonal, diurnal, and background ozone: CMAQ simulations over the Northern Hemisphere

Answers

It does not have a strong seasonal influence on ozone over the Northern Hemisphere.

Ozone

Three oxygen atoms make up ozone, a highly reactive gas. The stratosphere, the upper atmosphere of the planet, and the lower atmosphere both include this naturally occurring and artificial substance (the troposphere). Ozone has an impact on life on Earth, but only depending on where it resides in the atmosphere.

Molecular oxygen and solar ultraviolet (UV) light interact to naturally create stratospheric ozone. The "ozone layer," which is located 6 to 30 miles above the Earth's surface, decreases the quantity of dangerous UV light that reaches the surface.

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Justify the statement, "nuclear energy is harmful as well as useful."​

Answers

Nuclear energy is harmful because it releases of harmful ionizing radiation and has been employed in the production of atomic bombs and hydrogen bombs.

Nuclear energy is beneficial in that it produces vast amount of energy for domestic and industrial purposes.

What is nuclear energy?

Nuclear energy refers to the energy which is produced as a result of the changes that occur in the nucleus of atoms of elements.

Nuclear energy produces the largest amount of energy when compared to other forms of energy sources.

Nuclear energy is produced by two types of nuclear reactions:

Nuclear fission and Nuclear fusion

Nuclear energy is harmful in that it results in the release of harmful ionizing radiation which damages cells and tissues of living organisms.

Nuclear energy is also harmful because nuclear energy has been employed in the production of atomic bombs and hydrogen bombs.

On the other hand, nuclear energy is beneficial in that it produces vast amount of energy which can be used for domestic and industrial purposes. It also produces fewer wastes that damage the environment compared to fossil fuels.

In conclusion, nuclear energy is both beneficial and harmful.

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The equilibrium concentration of sulfide ion in a saturated lead sulfide solution is M. (Assume that .)

Answers

[S^2-] =8x10^-15 M ( I hope this is right )

A sparingly soluble metal hydroxide, m(oh)2 has a molar solubility of s mol/l at 25°c. its ksp value is:______

Answers

The value of the Ksp can be obtained in terms of s as 4s^3.

What is Ksp?

The term Ksp has to do with the solubility product. It is the extent to which a substance can dissolve in water. We know that the solubility of the substance can be given as;

M(OH)2(s) ⇔M^+(aq) + 2OH^-(aq)

Ksp = s * (2s)^2

Ksp = s * 4s^2

Ksp = 4s^3

Thus it follows that the value of the Ksp can be obtained in terms of s as 4s^3.

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How many grams of aluminum are required to react with 35 mL of 2.0 M hydrochloric acid, HCl?__ HCl + __ Al --> __ AlCl3 + __ H2

Answers

Answer:

0.6258 g

Explanation:

To determine the number grams of aluminum in the above reaction;

determine the number of moles of HCldetermine the mole ratio,use the mole ratio to calculate the number of moles of aluminum.use RFM of Aluminum to determine the grams required.

Moles of HCl

35 mL of 2.0 M HCl

2 moles of HCl is contained in 1000 mL

x moles of HCl is contained in 35 mL

[tex]x \: mol \: = \: \frac{2 \: \times \: 35}{1000} \\ = 0.07 \: moles \: [/tex]

We have 0.07 moles of HCl.

Mole ratio

Balanced equation

6HCl(aq) + 2Al(s) --> 2AlCl3(aq) + 3H2(g)

Hence mole ratio = 6 : 2 (HCl : Al

but moles of HCl is 0.07, therefore the moles of Al;

[tex] = \frac{2}{6} \times 0.07 \\ \: = 0.0233333 \: moles[/tex]

Therefore we have 0.0233333 moles of aluminum.

Grams of Aluminum

We use the formula;

[tex]grams \: = moles \: \times \: rfm[/tex]

The RFM (Relative formula mass) of aluminum is 26.982g/mol.

Substitute values into the formula;

[tex] = 0.0233333 \: moles \: \times \: 26.982 \: \frac{g}{mol} \\ = 0.625799 \: grams[/tex]

The number of grams of aluminum required to react with HCl is 0.6258 g.

Consider the balanced chemical equation when 18.3 g Al is reacted with 113 g I₂ to form AlI₃(g).
What is the mass in grams of the excess Al remaining after the partial reaction of 18.3 g Al with 113 g I₂?
2 Al(s) + 3 I₂(g) → 2 AlI₃(g)

Answers

Answer:

10.3 g Al

Explanation:

To find the excess mass of Al, you need to (1) convert grams I₂ to moles I₂  (via molar mass), then (2) convert moles I₂ to moles AlI₃ (via mole-to-mole ratio from equation coefficients), then (3) convert moles AlI₃ to grams AlI₃ (via molar mass). Now that you have the actual amount of AlI₃ produced, you need to (4) convert grams AlI₃ to moles AlI₃ (via molar mass), then (5) convert moles AlI₃ to moles Al (via mole-to-mole ratio from equation coefficients), and then (6) convert moles Al to grams Al (via molar mass). Now that you know the amount of Al actually needed to produce the product, you need to (7) find the excess mass of Al.

Molar Mass (Al): 26.982 g/mol

Molar Mass (I₂): 2(126.90 g/mol)

Molar Mass (I₂): 253.8 g/mol

Molar Mass (AlI₃): 26.982 g/mol + 3(126.90 g/mol)

Molar Mass (AlI₃): 407.682 g/mol

2 Al(s) + 3 I₂(g) -------> 2 AlI₃(g)

 113 g I₂           1 mole             2 moles AlI₃          407.682 g
-------------  x  ----------------  x  ----------------------  x  -------------------  =  121 g AlI₃
                       253.8 g             3 moles I₂               1 mole

121 g AlI₃           1 mole                2 moles Al           26.982 g
---------------  x  ------------------  x  ---------------------  x  -----------------  =  8.01 g Al
                        407.682 g          2 moles AlI₃           1 mole

Starting Amount - Mass Needed = Excess

18.3 g Al - 8.01 g Al = 10.3 g Al

A sample of aluminum metal is placed in a graduated cylinder. It is noted that 5.50 mL of water is displaced by the aluminum. The aluminum is then reacted with excess nitric acid to produce aluminum nitrate and hydrogen gas. Given the density for aluminum is 2.702 g/mL, how many grams of hydrogen gas are produced in the reaction

Answers

117.3 grams of hydrogen gas is produced in the reaction

What is Graduated cylinders?

Graduated cylinders are long, slender vessels used for measuring the volumes of liquids. They are not intended for mixing, stirring, heating, or weighing. Graduated cylinders commonly range in size from 5 mL to 500 mL. Some can even hold volumes of more than a liter.

Density - density is the mass of a material substance per unit volume. d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimetre are a typical unit of measurement for density.

2Al + 6 HCl = 2AlCl₃ + 3H₂

Density = mass / volume

2.702 g/mL = m / 5.50 mL

m = 14.861 g

mol Al = mass / molar mass

= 14.861 g / 26.98 g/mol

= 0.551 mol

So number of mol of aluminium nitrate formed will also be 0.551 mol

Mass of aluminium nitrate = mol x molar mass

= 0.551 mol x 212.996 g/mol

= 117.3 grams

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In your reaction you started with a solution that was approximately 8 M acetic acid and 4 M isopentyl alcohol. Use the equilibrium expression for this reaction to calculate the final concentrations of water, isopentyl acetate, isopentyl alcohol, and acetic acid (you'll need to use the quadratic equation to solve this expression) assuming that the equilibrium constant is 4.2. Calculate the percent yield of isopentyl acetate to which this value would correspond.

Answers

The final concentrations of water, isopentyl acetate, isopentyl alcohol, and acetic acid obtained on using equilibrium expression are 3.4M, 3.4M, 0.6M , 4.6M

Using ICE table:-

      Acetic acid  +  Isopentyl alcohol   ------>    Isopentyl acetate +  water

I         8M                   4M                                           0                           0

C        8-x                   4-x                                          +x                          +x                      

E        8-x                   4-x                                          +x                          +x

Equilibrium constant (Keq) = 4.2

On using the equilibrium expression -

Keq = [Product] / [Reactant]

Keq = x^2 / (8-x) (4-x )

4.2  =  x^2 / 32 - 8x - 4x + x^2

    x =  3.4

Concentration of acetic acid  = 8-x = 8-3.4 = 4.6M

Concentration of isopentyl alcohol = 4-x = 4-3.4 = 0.6M

Concentration of isopentyl acetate = x = 3.4M

Concentration of water = x = 3.4M

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(REALLY NEED HELP) What refers to the amount of electric force that could be created if the electric current were to flow?

electrical energy

electrical potential

electrical charge

electrical conduction

Answers

Answer:

electrical conduction

Explanation:

CONCLUSIONS: Suppose a student titrated a sample of monoprotic acid of unknown concentration using a previously standardized solution of NaOH. volume of 0.125 M NaOH dispensed 24.68 mL volume of acid solution 50.00 mL Given the data in the table above, what is the concentration of the unknown acid?

Answers

Concentration of unknown acid is 0.061 M

Given:

Concentration of NaOH = 0.125 M

Volume of NaOH = 24.68 mL

Volume of acid solution = 50.00 mL

To Find:

Concentration of the unknown acid

Solution: Concentration is the abundance of a constituent divided by the total volume of a mixture. The concentration of the solution tells you how much solute has been dissolved in the solvent

Here we will use the formula for concentration:

M1V1 = M2V2

0.125 x 24.68 = 50 x M2

M2 = 0.125 x 24.68 / 50

M2 = 0.061 M

Hence, the concentration of unknown acid is 0.061 M

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What is the energy change when 100g of Benzene boils at 80.1°C?

Answers

The enthalpy of vaporization for Benzene is 30.8 kJ/mol. 39.42 kJ is the energy change when 100g of Benzene boils at 80.1 degrees Celsius.

What is Enthalpy of Vaporization ?

The amount of enthalpy or energy that must be added to a liquid substance into gas substance is called Enthalpy of Vaporization. It is also known as Latent heat of vaporization.

How to find the energy change from enthalpy of vaporization ?

To calculate the energy use this expression:

[tex]Q = n \Delta H_{\text{vapo.}[/tex]

where,

Q = Energy change

n = number of moles

[tex]\Delta H_{\text{Vapo.}}[/tex] = Molar enthalpy of vaporization

Now find the number of moles

Number of moles (n) = [tex]\frac{\text{Given Mass}}{\text{Molar mass}}[/tex]

                                   = [tex]\frac{100\ g }{78\ g/mol}[/tex]

                                   = 1.28 mol

Now put the values in above formula we get

[tex]Q = n \Delta H_{\text{vapo.}[/tex]

   = 1.28 mol × 30.8 kJ/mol

   = 39.42 kJ

Thus from the above conclusion we can say that The enthalpy of vaporization for Benzene is 30.8 kJ/mol. 39.42 kJ is the energy change when 100g of Benzene boils at 80.1 degrees Celsius.

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Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: The enthalpy of vaporization for Benzene is 30.8 kJ/mol. What is the energy change when 100g of Benzene boils at 80.1 degrees Celsius?

When taking ph measurements of solutions, why is it important to stir thoroughly after adding each reagent?.

Answers

mixing helps ensure that the measured pH is reflective of the entire solution

What property should a radioisotope used for dating have?
OA. It must be an isotope not commonly found in the fossil.
OB. Its half-life should be similar to the age of the fossil.
OC. It must have a half-life much longer than the fossil age.
OD. It must decay to a stable isotope of the same element.

Answers

The property a radioisotope used for dating should have is Its half-life should be similar to the age of the fossil and is denoted as option B.

What is a Radioisotope?

This is an element which is unstable and releases radiation to achieve its stability.

The half-life of the element used in dating should be similar to that of the fossil for easy comparisons and accuracy.

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Answer:

b, half life should be similar to the fossil

Explanation:

A Carnot cycle operates between the temperatures limits of 400 K and 1600 K, and produces 3600 kW of net power. The rate of entropy change of the working fluid during the heat addition process is

Answers

The rate of entropy change:

The rate of entropy change of the working fluid during the heat addition process is 3 kW/K

What is the Carnot cycle?

The Carnot Cycle is a thermodynamic cycle made up of reversible isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression processes in succession. The ratio of the heat absorbed to the temperature at which the heat was absorbed determines the change in entropy.

The entropy of a system:

The rate of heat addition is expressed as,

Q = [tex]\frac{WT_{H}}{T_{H}- T_{L}}[/tex]

The entropy of a system is a measure of how disorderly a system is getting. The rate of entropy generation during heat addition is,

[tex]S_{gen} = \frac{Q}{T_{H}} = \frac{W}{T_{H} - T_{L}}[/tex]

Calculation:

Given:

[tex]T_{L}[/tex] = 400K

[tex]T_{H}[/tex] = 1600K

W = 3600 kW

Put all the values in the above equation, and we get,

[tex]S_{gen} = \frac{W}{T_{H} - T_{L}}[/tex] = [tex]\frac{3600}{1600-400}[/tex] = 3 kW/K

The rate of entropy change is 3 kW/K

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Regions in the human genome where one nucleotide has been substituted for another in at least 1% of the population are called:_______

Answers

Regions in the human genome where one nucleotide has been substituted for another in at least 1% of the population are called single nucleotide polymorphism

What are nucleotides?

Nucleotide can simply be defined as the basic building block of nucleic acids either RNA and DNA

Generally, nucleotides consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

A region is any considerable and connected part of a space or surface; specifically, a tract of land or sea of considerable but indefinite extent, a country, a district, in a broad sense, a place without special reference to location or extent but viewed as an entity for geographical, social or cultural reasons.

So therefore, regions in the human genome where one nucleotide has been substituted for another in at least 1% of the population are called single nucleotide polymorphism.

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_____ is a buildup of fluid within the eye.
a. macular
b. degeneration
c. cataracts
d. glaucoma
e. osteoporosis

Answers

Glaucoma Is a buildup of fluid within the eye.

The optic nerve, which is necessary for clear vision, is harmed by a group of eye conditions collectively referred to as glaucoma. This injury typically happens as a result of an excessively high amount of pressure in your eye. Glaucoma is one of the leading causes of blindness in persons over 60. Glaucoma frequently results from high intraocular pressure. Diabetes, however, can also increase your risk of developing glaucoma. We'll go into more detail about the connection between diabetes and glaucoma in this piece. We'll also talk about some preventative steps you may take to help keep your eyes healthy. Loss of side or peripheral vision: Often, this is the first glaucoma symptom.

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What is the electron structure of a beryllium atom? 1s ²2s 1 O 1s 22s 2 1s ¹2s 2 1s 23s 2​

Answers

Answer:

Be = 1s²2s²

Explanation:

Beryllium (Be) is the 4th element on the periodic table. As such, beryllium has 4 electrons. It is the second element located in the second row in the s-block. Therefore, beryllium's electron structure should consist of 2 completely filled s-orbitals.

Answer:

Explanation:

8281s

Help me ASAP please!!!

Answers

The concentration of the sodium hydroxide will be 0.016 M

Stoichiometric problem

First, the concentration of the diluted nitric acid needs to be found.

m1 = 2.0 M,  v1 = 100 mL, v2 = 300.0 mL

m2 = 2 x 100/300 = 0.6667 M

The equation of the reaction goes thus: [tex]HNO_3 + NaOH = NaNO_3 + H_2O[/tex]

The mole ratio is 1:1.

Mole of 0.6667 M, 7.05 mL HNO3 = 0.6667 x 0.00705 = 0.0047 mol

Equivalent mole of NaOH = 0.0047 mol

Molarity of 0.0047 mol, 30.0 mL NaOH = 0.0047/0.3 = 0.016 M

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Given the following equation: __ Al(s) __ O2(g) --> __ Al2O3(s) When the equation is correctly balanced using smallest whole numbers, the coefficient of Al(s) is:

Answers

Answer:

The coefficient for Al(s) is 2.

Explanation:

__ Al(s) __ O2(g) --> __ Al2O3(s)

__ Al(s) __ O2(g) --> 1 Al2O3(s)

1 Al(s) __ O2(g) --> 1 Al2O3(s)

1 Al(s) + 1.5 O2(g) --> 1 Al2O3(s)             [Use a fraction to make it balance]

2 Al(s) + 3 O2(g) --> 2 Al2O3(s)             [Convert the 1.5 fraction to a whole number by multiplying all coefficients by 2]

what is the formula n²o​

Answers

Answer:

Nitrous oxide

Explanation:

Nitrous+ Oxygen (ygen becomes -ide when it is combined) = Nitrous oxide

just learnt these in school, hope this is correct

hii kiran hru my darling

Consider the reaction. At 298 K, the equilibrium concentration of O2 is 1.6 x 10-2 M, and the equilibrium concentration of O3 is 2.86 x 10-28 M. What is the equilibrium constant of the reaction at this temperature

Answers

The value of the equilibrium constant is 1.99 × [tex]10^-^5^0[/tex] .

Given:

Concentration of [tex]O_2 = 1.6[/tex] × [tex]10^-^2 M\\[/tex]

Concentration of [tex]O_3 = 2.86[/tex] × [tex]10^-^2^8 M[/tex]

A chemical reaction known as an equilibrium reaction occurs when the reactants remain in a stable condition both during and after the reaction.

The given balanced equilibrium reaction is,

[tex]3O_2 (g) = 2O_3 (g)[/tex]

The expression for equilibrium constant will be,

[tex]K_c = \frac{[O_3] ^2}{[O_2]^3}[/tex]

Now put all the given values in this formula, and we get

[tex]K_c = \frac{(2.86 * 10^-^2^8] ^2}{[1.6 * 10 ^-^2]^3}[/tex]

[tex]K_c = 1.99[/tex] × [tex]10^-^5^0[/tex]

Therefore, the value of the equilibrium constant is 1.99 × [tex]10^-^5^0[/tex] .

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Please Help! Is it possible to have two other resonance structures with the double bond being connected to the chlorine.

Answers

It is possible for two other resonance structures to be connected but results in positive formal charge which isn't suited for a very electronegative atom such as chlorine.

What is a Lewis structure?

This is a type of diagram which depicts the bonding between atoms and lone pairs which are present in the molecule.

Adding two other resonance structures will also result in the poor overlap between the p-orbitals.

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I NEED HELP ASAPPPP

Once extracted and purified, 20.0 grams of a pure sample of
substance X is thermally decomposed at 840oC. The two products of this reaction are calcium oxide and carbon dioxide gas. Write a balanced chemical equation and calculate the mass of calcium oxide produced. Show your process.

BALANCED CHEMICAL EQUATION:

PROCESS:

Answers

Answer:

11.2 grams CaO

Explanation:

It appears that substance X may be calcium carbonate:  CaCO3

CaCO3 can be thermally decomposed to CO2 and CaO in the following balanced reaction:

CaCO3(s) ⇒ CaO(s) + CO2(g)     (with applied heat, 840°C)

The molar ratio between the product, CaO, and the reactant, CaCO3, is 1:1.  If we start with 1 mole CaCO3, we should produce 1 mole of CaO.

We have 20.0 grams of substance X, which we'll label CaCO3.  Calculate the moles of CaCO3 by using its molar mass of 100.1 grams/mole.

 20.0 grams/(100.1 grams/mole) = 0.1998 or 0.200 moles of CaCO3.

This should produce, with a molar ratio of 1 to 1, 0.200 moles of CaO

Convert this to grams CaO by multiply by it's molar mass of 56.1 g/mole:

(0.200 moles)*(56.1 g/mole) = 11.2 grams CaO.  Any less, then blame it on your lab partner.  But don't try taking credit if you have more than 11.2 grams.  Scraping debri off the counter into the beaker doesn't count.

Describe any five uses of non-metals.​

Answers

HYDROGEN: USED AS ROCKET FUEL.

CHLORINE: USED TO PURIFY WATER.

GRAPHITE: USED IN PENCILS TO WRITE.

HELIUM: USED IN BALOONS TO MAKE THEM FLOAT INTO THE AIR.

PHOSPHOROUS: USED FOR IGNITION, SUCH AS FIREWORKS.

Other Questions
Trigonometrical identities (1/1)-(1/cos2x) Determine whether each of the following is true or false for C++. If false, explain why:a) To refer to a particular location or element within an array, you specify the name of the array and the value of the particular element.b) An array definition reserves space for an array.c) To reserve 100 locations for the integer array p, you write: p[100];d) A for statement must be used to initialize the elements of a 15-element array to zero.e) Nested for statements must be used to total the elements of a two-dimensional array. A city in an arid environment can observe much higher daily temperature swings than a city in a humid environment. This is in large part due to: A. More solar energy is absorbed in arid environments B. Water is densest at 5 C C. The albedo is lower in humid environments D. The specific heat capacity of water You are advising a customer on backup and disaster recovery solutions. The customer is confused between data breaches and data loss and whether the backup solution will protect against both. What explanation can you give? the reservoirs in fig. p6.55 contain water at 20c. if the pipe is smooth with l = 4500 m and d = 4 cm, what will the flow rate in m3/h be for z = 100 m? neglect minor losses. PLEASE HELP!!!!!!! in the example problem,how could you use multiplication to find equivalent ratios with the same amount of water? A liquid that can be modeled as water of mass 0.25kg is heat to 80 degrees Celsius. The liquid is poured over ice of mass 0.070kg at 0 degrees Celsius. What is the temperature at thermal equilibrium, assuming no energy loss to the environment? How much energy must be removed from 0.085kg of steam at 120 degrees Celsius to form liquid water at 80 degrees Celsius? What is the law of supply? How many of the following "goods" do you think conform to the general law of supply? Explain your answer in each case. a. Gasolineb. Cheating on examsc. political favors from legislators d. The services of heart specialistse. Childrenf. Legal divorces how is the process of respiration in reptiles adapted to life on land a mineral originally contained 1,000 radioactive parents. after two half-lives have passed the mineral will contain parent atoms and daughter atoms. enter in the correct numerical values. If a real economic shock shifts the LRAS curve to the left, which of the following will NOT further reduce real GDP growth and inflation? a a decrease in money growth b uncertainty that reduces consumption c a monetary policy rule that is credible d loss of market confidence about the power of monetary policy Which type of light is least useful for photosynthesis in terrestrial plants? briefly design the current exchange of the drainage system development around the terminal could a company like toms have come about absent the role of blake mycoskie? what is the role of the individual in entrepreneurial ventures such as toms? suppose f ( x ) = x 6 x 2 5 . notice that f ( 4 ) = 0.9091 . what does this tell us about the numerator and the denominator of f ? Whenever a new product competes against a company's already existing products and reduces the sales of those products, sunk costs working capital costs erosion costs opportunity costs how many integers less than 9975 are relatively prime to 9975? The reception desk has a tray in which to stack letters as they arrive. Starting at 12:00, thefollowing process repeats every five minutes: Step 1 Three letters arrive at the reception desk and are stacked on top of the letters already in thestack. The first of the three is placed on the stack first, the second letter next, and the third letter ontop. Step 2 The top two letters in the stack are removed. This process repeats until 36 letters have arrived (and the top two letters have been immediatelyremoved). Once all 36 letters have arrived (and the top two letters have been immediately removed),no more letters arrive and the top two letters in the stack continue to be removed every five minutesuntil all 36 letters have been removed. At what time was the 13th letter to arrive removed? Air is used as the working fluid in a Diesel cycle with nonidealities. Some important pieces of information regarding the cycle are: The nonidealities occur during the adiabatic compression and expansion processes. At the beginning of the compression process, the air is at 95 kPa and 22C. The pressure bounds (i.e. the minimum and maximum pressure) for this non-ideal cycle are the same as they would be under ideal operating conditions. Ideally, the compression ratio for this cycle would be rideal = 10. The specific volume at the end of the isobaric expansion is the same for the real cycle and the idealized cycle. The temperature is measured to be 800 K after the adiabatic compression process. The cutoff ratio for the real cycle is r= 2.5. The adiabatic expansion produces 85% of the work it would produce if it were also reversible. Treat air as having constant specific heats at 300 K during your analysis. a) Sketch an ideal Diesel cycle on P-v and T-s diagrams. You do not need to specify any property values on your diagrams. Using the ideal cycles for reference, sketch the non-ideal Diesel cycle described above on the same axes. Again, you need not specify any property values; just focus on getting the general trends correct. b) Determine the isentropic efficiency of the compression process. c) Determine the thermal efficiency of this cycle. d) Determine the ratio of the thermal efficiency of this cycle compared to its ideal counterpart. That is, determine thermal real/thermal,ideal Drying provides the full antiseptic effect. After assisting a newly admitted client with removing their shoes and outerwear, the nurse notices what appears to be soil or grime on their hands. Which of the following actions should the nurse take?