chempg35&39
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| Question |
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| Answer |
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| catalysts |
These can reduce the amount of activation energy needed to start a reaction. |
| energy |
The ability to do work. |
| oxidation reaction |
When a reactant loses one or more electrons becoming positive in charge. |
| reactants |
The ‘ingredients’ in a reaction. |
| activation energy |
The amount of energy needed to start a reaction. |
| enzyme |
A protein that speeds up a reaction of works on a substrate without being changed or destroyed in the process. |
| reduction reaction |
When a reactant gains one or more elections becoming negatively charged in the process. |
| products |
In a chemical equation, these compounds and/or molecules are on the right hand side. |
| polar |
A compound with an uneven distribution of charge. |
| hydrogen bond |
This type of bond joins water molecules. |
| solution |
A mixture in which one or more substances are uniformly distributed in another substance. |
| chemical reaction |
Substances combine to produce one or more different substances that can not be separated by physical means. |
| metabolism |
The term used to describe all the reactions that occur in an organism. |
| hydroxide ion |
The OH- dissolved in aqueous solution that creates a base. |
| pH scale |
A numerical chart that is used to compare acids and bases. |
| acid |
Has a pH below 7. |
| base |
Has a pH above 7. |
| solute |
The substance dissolved in the solvent. |
| redox reaction |
When electrons are transferred between atoms. |
| buffer |
A substance that helps to maintain the neutrality of a substance. |
| concentration |
The amount of solute dissolved in a solvent. |
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