Writing and Balancing Chemical Equations

Question 1

In a chemical equation, which symbol should be used to indicate that a substance is in solution?

Revolt · Accepted Answer

(aq)

Question 2

This formula equation is unbalanced.P4(s) + 6Cl2(g) PCl3(l) Which coefficient should be placed in front of PCl3 to balance this equation?

Revolt · Accepted Answer

4

Question 3

Which statement best describes the formula equation Cl2(g) + 2KBr(aq) 2KCl(aq)+ Br2(l)?

Revolt · Accepted Answer

Chlorine gas reacts with potassium bromide to form potassium chloride in solution and liquid bromine.

Question 4

The compound FeCl3 is made of

Revolt · Accepted Answer

one atom of iron and three atoms of chlorine.

Question 5

Isopropanol burns in oxygen to yield carbon dioxide, water, and heat. Which word equation best represents this chemical reaction?

Revolt · Accepted Answer

isopropanol + oxygen carbon dioxide + water + heat

Question 6

According to the law of conservation of

Revolt · Accepted Answer

mass

Question 7

Consider the unbalanced equation for the oxidation of butene.C4H8 + 6O2 CO2 + H2OFor each molecule of C4H8 that reacts, how many molecules of carbon dioxide and water are produced?

Revolt · Accepted Answer

four carbon dioxide molecules and four water molecules

Question 8

The chemical equation for the formation of ammonia is unbalanced.3H2(g) + N2(g) NH3(g)If three molecules of hydrogen react with one molecule of nitrogen, how many molecules of ammonia would be formed?

Revolt · Accepted Answer

2

Question 9

Which formula equation represents the burning of sulfur to produce sulfur dioxide?

Revolt · Accepted Answer

Upper S (s) plus upper O subscript 2 (g) right arrow with delta above upper S upper O subscript 2 (g).

Question 10

The compound CO2 is made of

Revolt · Accepted Answer

one atom of carbon and two atoms of oxygen.

Writing and Balancing Chemical Equations Answers

More from this Course

TRY EDGENUITY HACKS