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High School Science - HS-PS1-5 - How Temperature, Concentration, and Catalyst Affect Chemical Reaction Rates
High School Science - HS-PS1-5 - How Temperature, Concentration, and Catalyst Affect Chemical Reaction Rates
High School Science - HS-PS1-5 - How Temperature, Concentration, and Catalyst Affect Chemical Reaction Rates
High School Science - HS-PS1-5 - How Temperature, Concentration, and Catalyst Affect Chemical Reaction Rates

6 Questions

NGSS.HS-PS1-5
1

A student snaps two glow sticks of the same brand in two different cups of water.

2

Students test how a catalyst affects the rate of hydrogen peroxide decomposition (3% H₂O₂ at 25 °C).

3

Engineers explain that catalytic converters work better once the car engine warms up. Complete the sentences by using the drop-down menus.

4

A component of urban smog is the brownish gas nitrogen dioxide, which exists in equilibrium with its colorless dimer, dinitrogen tetroxide.

5

Part A: A student finds a brown plastic bottle of drugstore hydrogen peroxide (3%) in their bathroom cabinet.

6

Part B: Using your answers from Part A, explain why the hydrogen peroxide solution in the student’s bathroom cabinet became less effective over time.

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