Chemical Reactions

Question 1

Chemical Equation is?

Answer 1

number of atoms of each element same for reactants and products

Question 2

Chemical reactions are?

Answer 2

reactants or starting materials making or breaking chemical bonds to form a new substance or product from another

Question 3

Synthesis is?

Answer 3

smaller molecules forming larger molecules

Question 4

A+B= AB is an example of?

Answer 4

anabolic process (amino acid1 + amino acid2 = peptide protein

Question 5

AB = A+B is an example of?

Answer 5

catabolic process (glycogen= glucose+glucose+glucose….)

Question 6

Decomposition is?

Answer 6

larger molecules being broken down into smaller molecules

Question 7

Displacement is?

Answer 7

one part is exchanged

Question 8

double displacement is ?

Answer 8

more than one exchanged. AB+CD=AC+BD

Question 9

energy released during a reaction is?

Answer 9

Energonic ……A+B=C+D+energy

Question 10

energy required for a reaction to proceed is?

Answer 10

Endergonic A+B+energy= C

Question 11

Exerthermic releases _________?

Answer 11

Heat

Question 12

Endothermic ___________?

Answer 12

adds heat

Question 13

A+B >AB & AB >A+B is

Answer 13

a reversible reaction

Question 14

A+B<>AB

Answer 14

Chemical equilibrium

Question 15

In terms of chemical reaction rates, the size of reactants means

Answer 15

smaller is faster

Question 16

In terms of chemical reaction rates temperature means

Answer 16

speeds up particles

Question 17

In terms of chemical reaction rates concentration means

Answer 17

particles more likely to come together and react

Question 18

In terms of chemical reaction rates catalysts or enzymes mean?

Answer 18

makes a reaction more convenient

Question 19

in a beaker of water the ratio of Hydrogen ions to H2O is about

Answer 19

1/10,000,000

Question 20

Acid compounds ___________ concentration of ___________?

Answer 20

increase, hydrogen ions

Question 21

Basic Compounds ________ the concentration of _________?

Answer 21

decrease, Hydrogen ions

Question 22

what is the PH Formula

Answer 22

pH = -log10 [H+] = -log10 [10-7] = -(-7) = 7

Question 23

PH 1-6 is __________?

Answer 23

an Acid

Question 24

PH 8-14 is __________?

Answer 24

a base

Question 25

what is a buffer?

Answer 25

a compound that prevents large changes in PH of a solution
(PH shock absorber)

Question 26

what buffer is used in our body to prevent blood from getting to acidic

Answer 26

carbonic acid