Property Changes in Chemical Reactions Quiz Review

How many elements are shown?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Reactants will have different _________________ than the products

• chemical reactions

• properties

• melting/boiling point, density, solubility

• mixing, heating, cooling

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

One or more substances form from one or more other substances during a..

• mixing, cooling, heating

• product

• reactant

• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

This is the scientific law that states that matter cannot be created or destroyed.

• law of Atomic Equations

• law of conservation of matter

• law of conservation of elements

• law of conservation of energy

Tags

NGSS.MS-PS1-5

How do you know when chemical reaction is happening?

• Atoms remain in the same place and position in both a reactant and a product

• Atoms in the reactants break apart and regroup to make one or more new products.

• Atoms in products break apart and regroup to make one or more new reactants.

• Chemical reactions are only visual. If can't see it, it hasn't happened.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the mass of the reactants and products during a chemical reaction?

• The mass of the reactant is always higher than the mass of the product

• The mass of the reactant is always lower than the mass of the product.

• The mass of the reactant is always the same as the mass of the product.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does the coefficient tell us (number to the left of the chemical formula)?

• How many molecules there are in the reactant.

• How many molecules there are in the product.

• How many molecules of a particular substance there are.

• How many atoms there are in a molecule.

Tags

NGSS.MS-PS1-5

In a chemical reaction, the chemicals at the start of the reaction are called the _____.

• products

• reactants

• starters

• compounds

Tags

NGSS.MS-PS1-5

True or False
In a chemical reaction, no new atoms are created, and no atoms are destroyed. 

• true
• false

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The right side of the equation below is called the

• products
• reactants

Tags

NGSS.MS-PS1-2