Potassium chlorate (KClO 3 ) when heated produces potassium chloride (KCl) and oxygen gas (O 2 ). Which of the following equations represents the above reaction?

2KClO 3(s) —> 2KCl (s) + 3O 2 ↑

Which of the following is the correct balanced chemical equation for the combustion of natural gas (Methane)?

2CH 4 + O 2 —> 2CO 2 + 4H 2 O

2CH 4 + 2O 2 —> 2CO 2 + 2H 2 O

2CH 4 + 4O 2 —> 2CO 2 + H 2 O

Why does the rate of reaction increase when iron filings are used instead of iron nail in a reaction with hydrochloric acid?

Iron filings have greater surface area.

Iron filings act as a catalyst.

Iron filings have higher density.

Iron filings can increase the temperature of the reaction.

Which of the following statements describes a catalyst?

Increases the rate of reaction but is not used up in the reaction.

Increases the rate of reaction and is changed during the reaction.

Increases the rate of reaction and increases the amount of mass formed in the reaction.

It has no effect on the rate of reaction.

Which of the following statements about collisions is correct?

Chemical reaction will happen if the reacting particles have enough energy and are properly oriented to effect collisions.

All colliding particles have the same energy.

Ineffective collisions will result to a chemical reaction.

Chemical reaction will happen whether or not the reacting particles have enough energy and whether or not the particles are properly oriented to effect collisions.

Mike placed five green mangoes in the basket and another five mangoes wrapped in newspaper in a rice keeper. The mangoes wrapped with the newspaper and stored in a rice keeper ripen in three days while the mangoes placed in the basket were still green. Which of the following could be the reason for this?

The temperature inside the rice keeper is higher than the temperature inside the basket.

The newspaper serves as a catalyst.

There is less air inside the rice keeper than that of a basket.

The surface area of the basket is larger than that of a rice keeper.

Reaction Review

Authored by Charles Martinez

Chemistry

10th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following evidence of chemical change explains the curdling of milk?

Evolution of gas

Formation of precipitates

Change in temperature

Production of heat and light

Which of the following would most likely happen when substances undergo chemical reactions?

No new substances will be formed.

New substances are formed which are heavier than that of the reactants.

New substances are formed with the same set of properties as that of the reactants.

New substances are formed with the different set of properties as that of the reactants.

Which of the following laws conforms a balanced chemical reaction?

Law Relativity

Law of Conservation of Mass

Law inertia

Law of Definite proportion

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Which of the following equations represents the above reaction?

KClO_3(s) —-> KCl + O₂↑

2KClO_3(s) —> 2KCl_(s) + 3O₂↑

2KClO₃ —> 2KCl + O₂

KClO₃ —> KCl + 3O₂

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Potassium chlorate (KClO₃) had undergone what type of reaction?

Combination Reaction

Decomposition Reaction

Double replacement

Single replacement

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What would be the balanced equation for the combustion of butane, a lighter fluid?

C₄H₁₀ + O₂ —> 4CO₂ + 5H₂O

2C₄H₁₀ + 13O₂ —> 8CO₂ + 10H₂O

C₄H₁₀ + O₂ —> CO₂ + 5H₂O

C₄H₁₀ + O₂ —> 4CO₂ + H₂O

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Use the table below to answer question,
which metal is most reactive?
Metal Reaction with cold water

Copper No reaction

Rubidium A violent reaction

Strontium A steady reaction

Vanadium Little reaction

Copper

Rubidium

Strontium

Vanadium

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Reaction Review

Which of the following evidence of chemical change explains the curdling of milk?

Which of the following would most likely happen when substances undergo chemical reactions?

Which of the following laws conforms a balanced chemical reaction?

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Which of the following equations represents the above reaction?

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Potassium chlorate (KClO₃) had undergone what type of reaction?

What would be the balanced equation for the combustion of butane, a lighter fluid?

Use the table below to answer question,
which metal is most reactive?
Metal Reaction with cold water

Copper No reaction

Rubidium A violent reaction

Strontium A steady reaction

Vanadium Little reaction

Which of the following is the correct balanced chemical equation for the combustion of natural gas (Methane)?

NaCl + AgNO₃ AgCl +. NaNO₃ is an example of what type of chemical reaction?

Which of the following would most likely happen when sodium hydroxide (NaOH) solution and copper sulfate (CuSO₄) are combined?

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Similar Resources on Wayground

Popular Resources on Wayground

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Reaction Review

Which of the following evidence of chemical change explains the curdling of milk?

Which of the following would most likely happen when substances undergo chemical reactions?

Which of the following laws conforms a balanced chemical reaction?

Potassium chlorate (KClO3) when heated produces potassium chloride (KCl) and oxygen gas (O2). Which of the following equations represents the above reaction?

Potassium chlorate (KClO3) when heated produces potassium chloride (KCl) and oxygen gas (O2).Potassium chlorate (KClO3) had undergone what type of reaction?

What would be the balanced equation for the combustion of butane, a lighter fluid?

Use the table below to answer question, which metal is most reactive? Metal Reaction with cold water Copper No reaction Rubidium A violent reaction Strontium A steady reaction Vanadium Little reaction

Which of the following is the correct balanced chemical equation for the combustion of natural gas (Methane)?

NaCl + AgNO3 AgCl +. NaNO3 is an example of what type of chemical reaction?

Which of the following would most likely happen when sodium hydroxide (NaOH) solution and copper sulfate (CuSO4) are combined?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Which of the following equations represents the above reaction?

Potassium chlorate (KClO₃) when heated produces potassium chloride (KCl) and oxygen gas (O₂).
Potassium chlorate (KClO₃) had undergone what type of reaction?

Use the table below to answer question,
which metal is most reactive?
Metal Reaction with cold water

Copper No reaction

Rubidium A violent reaction

Strontium A steady reaction

Vanadium Little reaction

NaCl + AgNO₃ AgCl +. NaNO₃ is an example of what type of chemical reaction?

Which of the following would most likely happen when sodium hydroxide (NaOH) solution and copper sulfate (CuSO₄) are combined?