1st hour Unit 4 Questions over Notes by Matt Jeans

Gabe 9-12

2015-10-26 12:52:32 UTC

9.Prevents a reaction from occurring.

10.Compound that changes color as the concentration of H or OH changes.

11.Exothermic,endothermic.

12.Taste sour,no metals in thr formula,conducts electricity.

Edward 13-16

2015-10-26 12:53:12 UTC

13 Taste bitter, DO contain metals in formula, conduct electricity, feel slippery, turns Litmus paper blue.

14 Acid - substance that releases H+ ions when it dissociates (Separates into ions.) The numbers that represents an acid on the pH scale are 1-6.

15 Bases - substances that releases OH- ions when it dissociates. The numbers that represent a base on the pH scale are 8-14.

16 AX+B > A+BX A and B are metals or positive ions, X represents a nonmetal or a negative ion.

autumn 17-20

2015-10-26 12:53:26 UTC

17. double replacement reaction - two seperated groups that switches partners

18. 2 or more substance become 1 substance

19. 1 substance becomes 2 or more substance

20, chemical change is matter that are different from those present before the change

asia21-24

2015-10-26 12:53:38 UTC

22. it is the same number of subscript, small shrunken # identifying # of elelments in a compound

23 are numbers in front of atom and molecules represent the number of individual atom and molecules, bg # before the compund showing how many compounds are in a reaction

24 change in mass, temp, light, precipitate, smoke, gas released, color or sound

jessie 25-28

2015-10-26 12:54:03 UTC

25: inhibitor, catalyst, temperature change, pH change

26:it releases a substance of OH; neutralization occurs producing water or needing water to react

27: solid that forms during a double replacemnt reaction form mixing two liquids

28:CROSS OFF

Lea and Jaci 1-4

2015-10-26 12:54:57 UTC

1. It represents a chemical reaction

2. Amount of H+- Hydrogen Ions

3. 0-14 is a scale 1-6 are acids 7 neutral 8-14 is a base

4. Balancing is done by changing coefficients not the subscripts of an equation

quinton 29-32

2015-10-26 12:55:20 UTC

29.The law of conservation of mass states that the total mass of the products equals the total mass of the reactants in a chemical reaction.

30. The appearance of matter changes but the properties and make-up remain the same.

31.Are the original substances that enter into the reaction (left side of arrow)

32. new substances created from a reaction (right side of arrow)

avery33-36

2015-10-26 13:07:30 UTC

33.Atoms rearrange themselves to create one or more new compounds in a chemical reaction.

34.Taste Sour,No Metals in formula,React with some metals to produce H2 gas,turns litmus paper red.

35.taste bitter,do contain metals in formula, conducts electricity.

36. substance that releases H+ ion when is dissociates

37. substance that releases OH-, ex soaps, detergents, ink, etc.

Eddie 5-8

matthew_jeans — 2015-11-04 22:31:51 UTC

5. amount of time for a reaction to occur

6. reactions that absorb energy, energy increases during reaction, labeled on reactant side

7. reactions where energy is released, energy decreases, labeled on product side

8. substance added to lower activiation energy or speed up reactions