Chemical Reaction
What are the different types of chemical reactions?
Combustion, neutralization, synthesis, decomposition, double displacement, and single displacement
_____ has H+ ions, a sour taste, and is corrosive to metals
Acids
What is neutralization?
When equal amounts of an acid reacts with a base
What is a mole used for?
A mole is used to count particles of matter
What is the percent of composition equation?
% Composition= mass of element/ total mass x 100
_____ _____ represent chemical reactions?
Chemical equations
_____ has OH- ions, a bitter taste, and is slippery
Bases
What is formed during neutralization?
Water and salt are formed
What is the equation for mole(mol) ?
1 mol= 6.02 X 10^23
How can you check if your answer is correct when doing percent composition?
Add each elements percent together
A reaction rate
If red litmus paper turns blue the substance is a....
Base
HCl + NaOH > ____ + ____
HCl + NaOH > _NaCl_ + _H2O_
What are the steps of Molar mass?
1) Formula
2) Atomic mass
3) Total
4) Round(0.1 place)
5) Add units g/mol
What is the percent composition of H2O?
H2O
H 2 x 1.0 = 2.0g
O 1 x 16.0 = 16.0g
Total= 18.0 g
% H 2.0/18.0 x 100 = 11.11%
% O 16.0/18.0 x 100= 88.89%
All chemical reactions either....
Absorb or release energy
If blue litmus paper turns red the substance is a....
Acid
In this equation which is the acid and base?
HNO3 + NaOH > NO3Na + H2O
Acid- HNO3
Base- NaOH
Find the molar mass of NaOH....
NaOH
Na 1 x 23.0 = 23.0g
O 1 x 16.0= 16.0g
H 1 x 1.0= 1.0
Total= 40.0 g/mol
What is the percent composition of CaCO3?
CaCO3
Ca 1 x 40.0= 40.0g
C 1 x 12.0= 12.0g
O 3 x 16.0= 48.0g
Total= 100.0g
%Ca 40.0/100.0 x 100 = 40.0%
%C 12.0/100.0 x 100 = 12.0%
%O 48.0/100.0 x 100 = 48.0%
Signs a chemical reaction has occurred....
Temperature change, release of light, odor change, color change, gas given off, turns into a solid
What measures the pH level and determines how high of a neutral, acid, or base the substance is?
pH scale
Ca(OH)2 + H3PO4 > _____ + _____
Ca(OH)2 + H3PO4 > H20 + CaPO4
Who created the mole equation and what is it?
Avogadro
mole= 6.02 x 10^23= 602,213,670,000,000,000,000
Find the percent composition of H2CO3....
H2CO3
H 2 x 1.0= 2.0g
C 1 x 12.0= 12.0g
O 3 x 16.0= 48.0g
Total= 62.0g
%H 2.0/62.0 x 100 = 3.2%
%C 12.0/62.0 x 100 = 19.4%
%O 48.0/62.0 x 100 = 77.4%