6.3 + 6.4 + 6.5

Question 1

oxidation reduction reaction

Answer 1

transfer of electrons from one substance to another

Question 2

oxidation

Answer 2

process of losing electrons

Question 3

reduction

Answer 3

process of gaining electrons

Question 4

what role does oxidation play in biological systems?

think hydrogen and oxygen

Answer 4

oxidation may involve loss of Hydrogen or

gain of Oxygen

Question 5

what role does reduction play in biological systems?

think hydrogen and oxygen

Answer 5

reduction may involve gain of Hydrogen or

loss of Oxygen

Question 6

does oxidation and reduction occur separately or simultaneously?

Answer 6

simultaneously

Question 7

mole

Answer 7

counting unit that represents same # of 12 g of carbon in carbon-12

Question 8

Avogadro’s number

Answer 8

6.02 x 10^23

Question 9

a mole of a covalent compound contains _____molecules. (Avogadro’s number)

Answer 9

6.02 x 10^23

Question 10

A mole of a ionic compound contains _____molecules. (Avogadro’s number)

Answer 10

6.02 x 10^23

Question 11

How do you write the equality of Avogadro’s number?

Answer 11

6.02 x 10^23/1 mole

1 mole/6.02 x 10^23

Question 12

How do you determine the mole of elements in a formula?

Answer 12

the subscript,

so F2= 2 moles of fluorine

Question 13

molar mass

Answer 13

mass of one mole of a substance

Question 14

what can you use to determine the molar mass of a substance?

Answer 14

the atomic mass

Question 15

how many places (after decimal) do you use when writing molar mass?

Answer 15

tenths

.1g