Question

Materials A and B are mixed together to form Material C. This data table shows the mass and other properties of the three materials.

Did a chemical reaction occur?

Select the words from the drop-down menus that correctly complete the explanation.

The mixture produced a new substance, as shown by the
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of Material C. The change in color and the change in
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are both signs that a chemical reaction
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occur.

Answer 1

To accurately complete the explanation, the chosen words should indicate that a new substance was formed and that observable changes occurred that are typical indicators of a chemical reaction. Here is one way to complete the sentences:

The mixture produced a new substance, as shown by the **properties** of Material C. The change in color and the change in **mass** are both signs that a chemical reaction **did** occur.

Feel free to replace "properties" and "mass" with words that are more relevant to your specific situation if needed!