Physical Science: Second Semester Test

The Law of Conservation of Mass says: "During a chemical reaction, mass is neither _______ nor destroyed."

• Melted

• Created

• burned

Tags

NGSS.MS-PS1-5

The substances that go into a reaction are called the _______.

• Reactants

• products

Tags

NGSS.MS-PS1-2

Balance this equation: 6FeO → ___Fe₂ + 6O

• 2
• 4

• 3

Tags

NGSS.MS-PS1-5

Balance this equation: C + ____ → CO₂

• 5

• 4

• 2

Tags

NGSS.MS-PS1-5

Balance this equation: Cu₅ + S₅ --> ___ CuS

• 3
• 4
• 5

Tags

NGSS.MS-PS1-5

What reaction has the following general formula: AB →A + B

• Decomposition reaction

• Combination reaction

• Displacement reaction

• Double displacement reaction

What reaction has the following general formula: A + CD → C + AD

• Double Replacement

• Single Replacement

• Decomposition

Tags

NGSS.MS-PS1-2

What reaction has the following general formula: AB + CD → CB + AD

• Double Replacement

• Decomposition

• Single Replacement

What reaction has the following general formula: A + B → AB

• Single Replacement

• Decomposition

• Synthesis

Tags

NGSS.MS-PS1-5

In an endothermic reaction, energy is __________.

• Absorbed

• released

Tags

NGSS.MS-PS1-4