Chemical Equations and the Law of Conservation of Mass

Front

Measure of the amount of matter
Options: mass, volume, weight, density

Back

mass

Front

Molecule

Back

A group of atoms bonded together

Tags

NGSS.MS-PS1-1

Front

Matter can not be created nor destroyed: it can only be

Back

Transformed, changed, rearranged

Tags

NGSS.MS-PS1-5

Front

The number to the lower side of an element is a

Back

Subscript

Front

The number in front of a compound or element is a

Back

Coefficient

Front

How many oxygen atoms are in this chemical formula? Options: 6 oxygen atoms, 2 oxygen atoms, 3 oxygen atoms, 4 oxygen atoms

Back

6 oxygen atoms

Tags

NGSS.MS-PS1-1

Front

When is a chemical reaction balanced?

Back

Both sides have the same number of atoms

Tags

NGSS.MS-PS1-5

Front

Which of these is not a chemical reaction? Options: Burning of wood, Milk going bad, Mixing vinegar and baking soda, Melting of ice

Back

Melting of ice

Tags

NGSS.MS-PS1-2

Front

The coefficient in  3H₂O is

Back

3

Tags

NGSS.MS-PS1-5

Front

If reaction starts with 20g of reactants, what is the total mass of products produced?

Back

a total of 20g of products

Tags

NGSS.MS-PS1-5