Chemical Reactants.

2. Are those which absorb from the surrounding and result in a net decrease in temperature
4. is a chemical equation with the same number of each element on both sidesof the arrow.
5. is a substance that is formed as a result of a chemical reaction
9. The speed at which reactants are converted in products.
10. a chemical reaction that releases energy in the farm of light or heat
11. is the number infront of the formula that is relattes to the properties of the product for example 2 h20 means there is two molecules of water
12. A substance that takes part in and undergoes change during a reaction
14. Loss of electrons Reduction gainof electrons
15. A type of lettering form written lower than the things around it in chemical formulas the number of atoms in a molecule is written in this manner.
17. is a substance produced by a living organism that acts as a xatalyst to bring about a specific biochemical reaction

1. A substance that slows down or prevents a particular chemical reaction or different process or that reduces the activity of a particular reactant catalyst or enzyme
3. for any system close to all transfers of matter and energy the mass of the system must remain constentover time as systems mass connect change so quantity cannot be removed.
6. the amount of a substance that contains 6.02 x 10 power of 23 particles of that substance
7. A representation of a chemical reaction using symbols of the elements to ndicate the amount of substance usually in moles of each reactant and product
8. a state in which forward and reverse reactions or preceses proceed at quil rates.
13. mass in grams of one mole of a substance
16. A substance that increases the rate of chemical reaction with out it self undergoing any permanent chemical change