Explain, in terms of electron configuration, why oxygen atoms and sulfur atoms form compounds with similar molecular structures

Answers

Answer 1

Answer: Oxygen atoms and sulfur atoms form compounds with similar molecular structures because if you look at these two, they both have six electrons in their valence shells. Therefore, they will generally react in much the same manner. I hope this helps you on your assignment.

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Which balanced equation represents an endothermic reaction?(1) C(s) + O2(g) → CO2(g)(2) CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)(3) N2(g) + 3H2(g) → 2NH3(g)(4) N2(g) + O2(g) → 2NO(g)
Define in your own words: Solute, Solvent and Solution.
In the early 1880s, the British Scientist John Dalton worked to find the atomic mass of several common elements.How could knowing the atomic mass of an element help a chemist do his or her work? A. The atomic mass could be used to convert that element into another element. B. The atomic mass could be used to identify an element. C. The atomic mass could be used to calculate the number of isotopes formed by the element.
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HCl solution, about 250 mL in volume. The pH of the solution is 1.37. Calculate the molar concentration of HCl in this solution. Please use the scientific presentation of the numerical answers (i.e., 1.23x 102), and round your answers to two decimal places.

If the sum of the mass of the reactants is 12.5 what would be the sum of the products be? And explain how you know this

Answers

If all the reactants will react and become products, the mass will be 12.5 g. Because the mass of the matter amount will not change during the reaction.

Two substances, A and Z, are to be identified. Substance A can not be broken down by a chemical change. Substance Z can be broken down by a chemical change. What can be concluded about these substances?(1) Both substances are elements.
(2) Both substances are compounds.
(3) Substance A is an element and substance Z is a compound.
(4) Substance A is a compound and substance Z is an element.

Answers

Answer;

(3) Substance A is an element and substance Z is a compound.

Explanation;

-A compound is a substance formed when two or more chemical elements are chemically bonded together, such as water, carbon dioxide, methane, etc while an element is a pure chemical substance made of same type of atoms, such includes, oxygen, potassium, hydrogen, carbon, etc.

- Compounds can be brokendown or decomposed into simpler substances: elements cannot be broken down chemically into simpler substances .

The answer is (3) Substance A is an element and Z is a compound. The chemical reaction can only break the chemical bond but can not change the atom. So A will is an element.

Which is true about fossil fuels? A.
Coal and natural gas came from swamp environments, while oil came from open oceans.

B.
Coal came from swampy environments, while oil and natural gas came from open ocean environments.

C.
Coal, oil, and natural gas came from swamp environments.

D.
Natural gas and oil came from swamp environments, while coal came from open oceans.

Answers

Which is true about fossil fuels? The statement that is true about fossil fuels is Coal came from swampy environments, while oil and natural gas came from open ocean environments. The answer is letter B. The rest of the choices is not true for fossil fuel

What is the charge that results when fluorine becomes an ion?

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-1 is the charge that results.

26.0 g of a liquid that has a density of 1.44 g/mL needs to be measured out in a graduated cylinder. what volume should be used

Answers

Answer: The volume of liquid used will be 18.055 mL.

Explanation:

To calculate the volume of liquid, we use the equation for density which is:

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$

We are given:

Mass of the liquid = 26 g

Density of the liquid = 1.44 g/mL

Volume of the liquid = ? mL

Putting values in above equation, we get:

$1.44g/mL=\frac{26g}{\text{Volume of the liquid}}\n\n\text{Volume of the liquid}=18.055mL$

Hence, the volume of liquid used will be 18.055 mL.

As Density = Mass/Volume
Mass = 26.0g
Density = 1.44g/mL
Therefore Volume = Mass/Density
=> Volume = 26.0/1.44 = 18.055... = 18.1mL (to 3 sig figs)

Calculate the number of moles
9.00 g of H2O
88.0 g of CO2
1.70 g of NH3

Answers

no. of moles -= given mass/ molar mass

1) 9 g of H2O = 9/18 = 1/2 = 0.5 mole

2) 88g of CO2 = 88/44 = 2moles

3) 1.7 g of NH3 = 1.7/17 = 0.1 mole

number of moles= mass/molar mass
1. 9 g of H2O =9/18=0.5 moles
2.88 gof CO2=88/44=2 moles
3.70 g of NH3=70/17=4.12 moles

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