Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

• The mass of the products is always greater than the mass of the reactants.

• The mass of the reactants is less than the mass of the products.

• The mass of the reactants equals the mass of the products.

• The mass of the reactants is greater than the mass of the products.

Tags

NGSS.MS-PS1-5

If the mass of a chemical reaction's product is 15 grams, what would the mass of the reactants be?

• 20 g

• 15 g

• 10 g

• 3 g

Tags

NGSS.MS-PS1-5

Which section represents the products?

• A

• B

• C

Tags

NGSS.MS-PS1-2

2 NaBr + 1 Ca(OH)₂ ----> 1 CaBr₂ + 2 NaOH

• Synthesis (or combination)

• Decomposition

• Single replacement

• Double replacement

2 NH₃+ 1 H₂SO₄ ----> 1 (NH₄)₂SO₄

• Synthesis (or combination)

• Decomposition

• Single replacement

• Double replacement

3 Pb + 2 H₃PO₄ ----> 3 H₂ + 1 Pb₃(PO₄)₂

• Synthesis (or combination)
• Decomposition
• Single displacement
• Double displacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

CaCO₃ ----> CaO + CO₂

• Synthesis (or combination)
• Decomposition
• Single displacement
• Double displacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of chemical reaction is this one?

C₂H₂ + O₂ --> CO₂ + H₂O

• Decomposition

• Combustion

• Synthesis

• Single Replacement

One reactant into several products.

• Decomposition
• Synthesis
• Combustion
• Single Replacement

Tags

NGSS.HS-PS1-7

Two Reactants and One Product

• Decomposition
• Combination
• Combustion
• Single Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5