Across
- 4. Mass in grams of one mole of a substance.
- 5. A substance that slows down or prevents a particular chemical reaction or other process, or that reduces the activity of a particular reactant, catalyst, or enzyme.
- 6. Gain of electrons.
- 8. Is a substance that is formed as the result of a chemical reaction.
- 9. A process in which one or more substances, the reactants, are converted to one or more different substances called the products.
- 14. Loss of electrons.
- 15. of reaction: The speed at which reactants are converted in products.
- 17. For any system closed to all transfers of matter and energy, the mass of the system must remain constant overtime, as systems mass cannot change, so quantity cannot be added or removed.
- 18. A substance that takes part in and undergoes chase during a reaction.
Down
- 1. A substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
- 2. A type of lettering form written lower than the things around it. In chemical formulas the number of atoms in molecule is written in this manner
- 3. is a chemical equation with the same number of atoms of each element on both sides of the arrow.
- 7. is the number in front of the formula, that is related to the properties of the products. For example 2 H20 means there are two molecules of water.
- 10. A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
- 11. of a substance that contains 6.02x10^23 particles of that substance.
- 12. reaction: Are those which absorb energy from the surroundings and result in a net decrease in temperature.
- 13. A chemical reaction that releases energy in the form of light or heat.
- 16. A substance that increases in the rate of a chemical reaction without itself undergoing any permanent chemical change.