Chemical Reactions Quiz

Which of the following is evidence of a chemical change?

• Melting of ice

• Production of a gas

• Dissolving sugar in water

• Breaking a glass

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does the reaction rate describe?

• The temperature of a reaction

• The color of the reactants

• How fast a reaction occurs

• The amount of reactants used

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NGSS.HS-PS1-5

What is temperature a measure of in the context of chemical reactions?

• Potential energy

• Chemical energy

• Kinetic energy

• Thermal energy

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NGSS.HS-PS1-5

What happens when there is more kinetic energy in particles?

• Fewer particles are present

• Particles move slower

• More collisions with more force occur

• Reaction rate decreases

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NGSS.HS-PS1-5

What is stored in the bonds between atoms and released as thermal kinetic energy when the bonds form?

• Chemical potential energy

• Electrical energy

• Nuclear energy

• Gravitational energy

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NGSS.HS-PS1-4

According to the law of conservation of energy, what can energy not be?

• Transferred

• Created or destroyed

• Measured

• Converted

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NGSS.HS-PS1-4

NGSS.HS-PS3-3

NGSS.HS-PS3-4

What is released as heat into the surroundings during a chemical reaction?

• Extra energy

• Light energy

• Sound energy

• Electrical energy

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NGSS.HS-PS1-4

Which of the following is a word equation for the reaction between hydrogen gas and oxygen gas?

• H2 + O2 — H2O

• Hydrogen gas + oxygen gas — Water

• H2O — H2 + O2

• Water — Hydrogen gas + oxygen gas

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NGSS.MS-PS1-5

What does the chemical equation H2(g) + O2(g) — H2O(l) include?

• Only the reactants

• Only the products

• The physical states of matter

• The temperature of the reaction

Tags

NGSS.MS-PS1-1

What is a chemical reaction?

• A process where substances are dissolved in water

• A process where two or more substances are combined to form new substances

• A process where substances are separated into individual atoms

• A process where substances are cooled to form solids

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5