Nomenclature of Covalent Compounds

Question 1

What do the symbols tell you about the conditions of the reactions shown to the right? Check all of the boxes that apply.

Revolt · Accepted Answer

The products and reactants of both reactions are gases.; A catalyst is used for reaction 2.

Question 2

Which equation obeys the law of conservation of mass?

Revolt · Accepted Answer

2H2(g) + O2(g) → 2H2O(g)

Question 3

When methane burns, it reacts with oxygen to produce water and carbon dioxide. The word equation that represents this reaction is: methane + oxygen

Revolt · Accepted Answer

carbon dioxide + water

Question 4

How do balanced chemical equations show the conservation of mass?

Revolt · Accepted Answer

They show that the number of atoms of each element is the same in the products and reactants.

Question 5

Electrolysis breaks down water to form hydrogen and oxygen gas. The word equation that represents this reaction is: water

Revolt · Accepted Answer

hydrogen + oxygen.

Question 6

What is the chemical equation for the burning of propane if all the products and reactants are in the gas phase?

Revolt · Accepted Answer

C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)

Question 7

Propane burns in oxygen to produce carbon dioxide and water. What are the chemical formulas of the reactants and products?

Revolt · Accepted Answer

The formulas of the reactants are C3H8 and O2. The formulas of the products are CO2 and H2O.

Question 8

What do the symbols tell you about the conditions of the reaction shown to the right? Check all of the boxes that apply.

Revolt · Accepted Answer

The reactant is dissolved in water.; A gas and a liquid are produced.

Question 9

How do balanced chemical equations show the conservation of mass?

Revolt · Accepted Answer

They show that the number of atoms of each element is the same in the products and reactants.

Question 10

Which equation obeys the law of conservation of mass?

Revolt · Accepted Answer

2H2(g) + O2(g) → 2H2O(g)

Nomenclature of Covalent Compounds Answers