CHEMISTRY I - CHAPTER 1

Question 1

what is chemistry

Answer 1

Is the study of matter and the changes it undergoes

Question 2

what is matter

Answer 2

anything that has mass and takes up space

Question 3

what is mass

Answer 3

is a measurement that reflects on the amount of matter

Question 4

what is a substance

Answer 4

matter that has uniform and definite composition

Question 5

what is weight

Answer 5

the force of gravity on an object

Question 6

are mass and matter the same?

Answer 6

no

Question 7

why mass and matter are not the same?

Answer 7

mass is a measurement that reflects on tthe amount of matter

Question 8

is mass and weight the same?

Answer 8

no

Question 9

why mass and weight are not the same?

Answer 9

weight is the gravitational force on the other

Question 10

does size matter on matter?

Answer 10

yes

Question 11

why does size matter in matter?

Answer 11

we have to imagen the behavior of small particles , we use model

Question 12

what is a model

Answer 12

visual, verbal or mathematical explanation data

Question 13

what is scientific method?

Answer 13

a process used by scientist to do research

Question 14

steps of scientific method

Answer 14

observation, hypotesis (has to be testable), esperiment, conclusion, repeat if necesarry

Question 15

what is a theory

Answer 15

a subject still being able to experiment with, can be modified.

Question 16

what is a law?

Answer 16

there is no exceptions to the relationship shown, something that always happens.