Which of these is EVIDENCE of a chemical reaction that releases energy?

Which of these is EVIDENCE of a reaction that absorbs energy?

What is your CLAIM about what can happen when energy is transferred from one system to another?

A burning candle is an example of a chemical reaction taking place. What can be inferred about this reaction?

The graph represents energy changes that occur during a chemical reaction. Your CLAIM? The energy is higher at the start. Your CLAIM?

What REASONING explains why increasing temperature generally increases the rate of a chemical reaction?

The diagram shows what happens before and after two unknown substances are mixed. The left beaker holds warmer water; the right is colder with gas.

Energy ALWAYS TRAVELS from -- to --.

Energy is released because the end of the graph is at a lower energy level than the beginning. Your REASONING is T or F?

You pick up a hot mug on a cold day and thankfully feel its heat in your hands. Your CLAIM will relate to which form of heat transfer?

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