unit 1 quiz 3

Question 1

reactants

Answer 1

elements you start with in a chemical equation

Question 2

products

Answer 2

the results of a chemical equation

Question 3

chemical equation

Answer 3

express how atoms combine or split apart

Question 4

energy in chemical equation

Answer 4

energy can either be absorbed (used) or released (created)

Question 5

state symbols

Answer 5

used in chemical equations, after the formula

Question 6

state symbol for solid

Answer 6

s

Question 7

state symbol for liquid

Answer 7

L

Question 8

state symbol for gas

Answer 8

g

Question 9

state symbol for aqueous solution (disolves in water)

Answer 9

aq

Question 10

law of condervation of mass

Answer 10

mass of reactants and products must be the same

Question 11

4 main types of chemical reaction

Answer 11

synthesis,
decomposition, single displacement, double displacement

Question 12

synthesis

Answer 12

a+b–>ab
(the building of two elements coming together)

Question 13

decompostion

Answer 13

ab–>a+b
(the breakdown of two elements)

Question 14

single displacement

Answer 14

fe+CuSO–>feSO+Cu
(3 different elemts, one switched which element it is with)

Question 15

double displacement

Answer 15

AgNo+NaPo–>AgPo+NaNo
(4 different elements that are wit a different one on the other side)

Question 16

corrosion

Answer 16

the breakdown of a metal through natural things.

Question 17

incomplete combustion

Answer 17

not enough oxygen, cant predict the outcome/products and cant be balances

Question 18

complete combustion

Answer 18

always prodices H2O and CO2, can be balanced, enough oxygen