Chemical Reactions

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In a chemical reaction, if more energy is required to make the chemical bonds than to break them apart, the reaction is endothermic, so we see a

Which of the following best describes a mixture?

Mr. Bowman’s science class is learning that substances can change in many ways. Sometimes a change will produce a new substance. This is called a chemical change. Which of the following is an example of a chemical change?

What is an example of a colloid?

If I add vinegar to baking soda, a chemical reaction takes place and carbon dioxide is produced. Which of the following will increase the speed of the chemical reaction?

synthesis

Which equation represents a single replacement reaction?

An example of a heterogenous mixture is