Vocabulary Terms
Fill in the Blank
Equations
Random
100
The total number of atoms of each element is not changed during a chemical reaction
Law of Conservation
100
When the number of each reactant’s atoms and the number of each product’s atoms are equal, the chemical reaction is ________
Balanced
100
How many atoms are in the formula NH3
4 atoms
100
A table is matter in what state?
- Solid
-Liquid
-Gas
Solid
200
To prevent the loss of something
Conserve
200
The total number of _____ is conserved (stays the same) and the mass does not change.
Atoms
200
How many Nitrogen (N) atoms are in the formula NH3
1 Nitrogen atom
200
What state of matter is this picture?
Liquid - Coffee
Cup - Solid
300
The smallest part of all matter
Atom
300
Matter is not created or ____ during a chemical reaction
Destroyed
300
How many molecules are represented in the formula 3CO2?
3 Carbon Dioxide
300
Air is what state of matter?
Gas
400
How much matter is in an object
Mass
400
The _________ is the number written below and to the right of a chemical symbol to show how many atoms are present.
Subscript
400
How many Carbon atoms are present in the formula 3CO2?
3 Carbon atoms
400
The vapor and the air are matter in this state......
Gas
500
The number placed in front of a chemical symbol in a balanced equation
Coefficient
500
The total number of atoms is conserved (stays the same) and the ______ does not change.
Mass
500
How many Oxygen atoms are present in the formula 3CO2?
3 * 2 = 6
6 Oxygen atoms
500
How many of each type of atom are in 4NO2?
Nitrogen: 4 atoms
Oxygen: 4*2 = 8 atoms