Molar Masses

Question 1

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 2

Which word equation shows hydrogen reacting with oxygen to form water?

Revolt · Accepted Answer

hydrogen + oxygen water

Question 3

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 4

According to the law of conservation of

Revolt · Accepted Answer

mass

Question 5

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 6

What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase?

Revolt · Accepted Answer

Upper H subscript 2 upper S upper O subscript 4 (a q) plus 2 upper N a upper O upper H (a q) right arrow upper N a subscript 2 upper A upper O subscript 4 (a q) plus 2 upper H subscript 2 upper O (l).

Question 7

Which chemical equation is unbalanced?

Revolt · Accepted Answer

Sr + O2 2SrO

Question 8

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out?

Revolt · Accepted Answer

2 a t m over a right arrow.

Question 9

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 10

The compound FeCl3 is made of

Revolt · Accepted Answer

one atom of iron and three atoms of chlorine.

Molar Masses Answers

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