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Conservation of Mass
Misc.
Vocab
Examples
Physical or chemical change
100
Matter cannot be created or destroyed
What is the Law of Conservation of Matter
100

Is mass conserved in this equation? 

2H20 + O2 = 3H2O2

No 

100

What is the first side of a chemical equation called?

Reactant

100

If Trey builds a Lego house with 15 Legos then used those legos to build a bridge, is mass conserved?

Yes 

100

An apple rotting and turning black 

Chemical

200
What is a chemical equation that has the same number of atoms in the products and reactants
What is Balanced
200

Is mass conserved in this equation? 

2C+ O2 = 2CO2

no 

200

What is the ending of a chemical equation called?

Product 

200

A fire weighs 20 kg but at the end, the pile of ash weighs 16kg is mass conserved? 

no- but if we capture the gas/smoke it would 

200

Cutting an apple into slices 

Physical

300
50 grams of magnesium reacts with oxygen. How many grams of magnesium will be present after the reaction occurs?
What is 50 grams
300

How many hydrogen are in the following molecule?C6H12O6

12

300
A _______________ chemical equation proves the law of conservation of mass 

Balanced. 

300

A candle melts into a puddle of wax 

Yes

300

Burning paper 

Chemical

400
What do the products and reactants of a chemical reaction have in common?
What is they have the same amount of matter.
400

How many Carbon atoms are in 6CO2

6

400

What does the law of conservation of mass state?

Matter can not be created or destroyed 

400

Ice melts into a puddle 

Yes 

400

What is a physical change 

When something changes state of matter. No new substance is formed 

500
According to the Law of Conservation of Mass, if 5 atoms of carbon are used as a reactant, how many atoms of carbon must be a part of the product?
What is 5 atoms
500
An expression in which symbols, formulas, and coefficients are used to represent a chemical reaction
What is a chemical equation
500

What are atoms?

The smallest unit of matter 

500

Baking soda and vinegar mix together to create a gas, water and acetate

Yes

500

What is a chemical change?

When a new substance is formed.