States of matter

Question 1

What is it called going from a solid to liquid?

Answer 1

melting

Question 2

what is it called going from a liquid to a gas?

Answer 2

boiling

Question 3

what is it called going from a gas to a liquid?

Answer 3

condensing

Question 4

what is it called going from a liquid to a solid?

Answer 4

freezing

Question 5

what is it called going from a solid to a gas

Answer 5

sublimation

Question 6

what is it called going from a gas to a solid?

Answer 6

sublimation

Question 7

what is an atom?

Answer 7

the smallest part of an element that can exist

Question 8

what is an element?

Answer 8

a substance made of only one type of only one type of atom

Question 9

what is a molecule?

Answer 9

a cluster of non-metal atoms that are chemically bonded

Question 10

what is a compound?

Answer 10

a substance made of two or more elements

Question 11

what is a mixture?

Answer 11

a mix of two or more substance which are not chemically bonded

Question 12

what is a pure substance?

Answer 12

a substance which has a fixed melting and boiling point but when in a mixture, may melt or boil at slightly different temperatures

Question 13

what is the mass and charge of a proton?

Answer 13

1, posotive

Question 14

what is the mass and charge of a neutron?

Answer 14

1, nuteral

Question 15

what is the mass and charge of an electron?

Answer 15

1/1836, negative

Question 16

what is the atomic number?

Answer 16

the number of protons in the nucleus of an atom and the number of electrons in the outer shells of an atom

Question 17

what is the mass number?

Answer 17

The total number of protons and numerous in a nucleus (protons + neutrons)

Question 18

how do you find how many neutrons are in a atom?

Answer 18

atomic mass - atomic number

Question 19

What is the relative atomic mass?

Answer 19

The average masses of all the isotopes of an element (see notes for example)