Chemistry chap 1, 2

Question 1

what is the smallest molecule that powers the sun and provides a vast amount of energy on earth

Answer 1

hydrogen

Question 2

what is a DNA molecule

Answer 2

a large molecule
blueprint for organism

Question 3

true/false: molecules can be seen through a microscope

Answer 3

false

Question 4

definition of chemistry

Answer 4

study of how molecules behave

Question 5

Matter is made out of what

Answer 5

molecules

Question 6

does the hypothesis have to be right

Answer 6

no

Question 7

what is the fifth step of the scientific method

Answer 7

law

Question 8

what is the fourth step of the scientific method

Answer 8

theory

Question 9

what is the third step of the scientific method

Answer 9

experiment

Question 10

what is the second step of the scientific method

Answer 10

hypothesis

Question 11

what is the first step of the scientific method

Answer 11

observation

Question 12

how do protein molecules help your body

Answer 12

they speed up chemical reactions

Question 13

are precise measurements important in chemistry

Answer 13

yes

Question 14

formula for scientific notation

Answer 14

a.bcd times 10 to the e power

Question 15

in the scientific notation formula, a has to be any number from…

Answer 15

1 to 10