Law of Conservation of Mass

The building block of matter is

• Mixture
• Atom
• Element
• Substance

This is made up of one or more of kind of the SAME kind of atom

• Element
• Mixture
• Compound
• Matter

Water is an element

• true
• false

Copper is a mixture.

• True
• False

The total amount of matter (atoms) before and after a chemical reaction (change), remains the same.

• True
• False

What is the Law of Conservation of mass?

• Mass is created in a chemical reaction
• Mass is created in a physical change
• New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
• Mass is never created or destroyed

Molecule

• A group of atoms bonded together
• Basic unit of a chemical element
• Coefficient
• Subscript

Tags

NGSS.MS-PS1-1