Unit 4 Stoichiometry

Question 1

Chemical equation

Answer 1

Symbolic representation of a chemical reaction

Question 2

General form

Answer 2

A(aq)+B(aq) —> AB(s)
reactants. Products

Question 3

Phase state symbols

Answer 3

Represent the state of matter the reactant\product is in

Question 4

g

Answer 4

Gas

Question 5

s

Answer 5

Solid

Question 6

l

Answer 6

Pure liquid
(Often water but can be any pure substance)

Question 7

(aq)

Answer 7

Aqueous solution

Question 8

Aqueous solution

Answer 8

Soluble compound dissolved to make a solution

Question 9

Coefficients

Answer 9

May be changed

Question 10

Subscripts

Answer 10

May not be changed

Question 11

The number of atoms on either side of the arrow must be

Answer 11

Equal

Question 12

Single displacement

Answer 12

Element + compound —> element + compound

Question 13

Double displacement

Answer 13

Compound + compound —> compound + compound

Question 14

Decomposition

Answer 14

Compound —> 2 or more elements/ compounds

Question 15

Synthesis

Answer 15

Element/compound + element\compound —> compound

Question 16

Combustion

Answer 16

Element/compound + O2 —> oxide compound

Question 17

Stoichiometry

Answer 17

The study of the amounts of substances in chemical reactions

Question 18

Theoretical yield

Answer 18

The amount of product calculated to be formed in stochiometry

Question 19

Experimental yield

Answer 19

The amount of product that forms when the reaction is carried out in a lab

Question 20

Percent yield

Answer 20

Experimental/theoretical x 100

Question 21

Limiting reactant

Answer 21

The reactant that limits how much product can be formed