Chemical Reactions

What are Chemical Reactions?

• It's when you mix substances.
• a process in which atoms rearrange to form new substances
• When something bubbles.
• letter and numbers showing the types and number of atoms

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What was the brown substance in the water in Westfield?

• Pipe substance
• Fertilizer
• Rust
• Oxygen

Tags

NGSS.MS-PS1-2

A structure that is formed by repeating groups of atoms linked together is

• molecule
• atom
• repeating group
• extended structure

Tags

NGSS.MS-PS1-1

An ending substance that is made during a chemical reaction is called

• Reactant
• Product
• Atom
• Molecule

Tags

NGSS.MS-PS1-2

The tiny pieces that all matter is made of is called

• electrons
• molecules
• super electrons
• atoms

Tags

NGSS.MS-PS1-1

The temperature at which a substance changes from the liquid phase to the gas phase is the

• melting point
• boiling point
• freezing point
• point of no return

Tags

NGSS.MS-PS1-4

The starting substances of a chemical reaction is called

• products
• substances
• reactants

Tags

NGSS.MS-PS1-5

The number of atoms on one side of a chemical equation is equal to

• a molecule of a substance
• the amount of gas released during a chemical reaction
• the number of atoms on the other side of a chemical equation
• all of the matter that exists in the universe

Tags

NGSS.MS-PS1-5

The arrow in a chemical reaction is known as

• yield/produce
• mixture
• energy
• equals

Tags

NGSS.MS-PS1-2

Evidence(s) that a chemical reaction occurred is(are)

• Change in color
• change in state of matter
• change in temperature
• all are correct

Tags

NGSS.MS-PS1-2