A ___ increases the reaction rate by lowering the activation energy needed.
Activation energy is used to
When one element replaces another element in a compound, that is a ___ reaction
Who first demonstrated the principle of the law of conservation of mass?
What is on the right of a chemical equation?
A characteristic of a substance that describes its ability to change into other substances.
An example of chemical property is
A change in state is classified as a
In a chemical change, the existing bonds break and never reform.
A solid that forms from liquids during a chemical reaction.
An endothermic reaction...
We separate reactants in a chemical equation with a
Activation energy is the ___ amount of energy needed to start a reaction.
Warming up reactants can help ___ a reaction
Biological catalysts that help reactions occur at body temperature are called
The preservatives in food slow down spoilage. This is an example of
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