HESI A2 CHEMISTRY EXAM - QUESTIONS AND ANSWERS

HESI A2 CHEMISTRY EXAM

QUESTION 1.
Matter that has a definite shape and volume
Solid


QUESTION 2
Matter that changes in volume with changes in temperature and pressure
Gas


QUESTION 3
A ____________ change of matter is when no change is made to the chemical
composition of a substance.
Physical


QUESTION 4
Simplest of substances and is represented by a letter or letters
Element


QUESTION 5
Law that states that matter can neither be created nor destroyed during a
chemical reaction
Law of observation of mass


QUESTION 6
The breakin of bonds and reforming of new bonds to create new chemical
compounds with different chemical formulas with different chemical properties
Chemical reaction

, QUESTION 7
5 main chemical reactions
Synthesis
Decomposition
Combustion
Single replacement
Double replacement


QUESTION 8

Chemical reaction in which 2 elements combine to form a product
Synthesis


QUESTION 9
Chemical reaction that is the breaking of a compound into component parts
Decomposition


QUESTION 10
The chemical reaction that is the reaction of a compound with oxygen
Combustion


QUESTION 11
Chemical reaction that consists of an active metal reaction with an ionic
compound creating a new compound
Single replacement


QUESTION 12
Chemical reaction involving 2 ionic compounds; the reactant yields “switched
prtners”
Double replacement
QUESTION 12