Atoms

Question 1

What happens in melting and boiling points of pure substances?

Answer 1

They become fixed

Question 2

Relative charge of a proton

Answer 2

+1

Question 3

Relative charge of a nuetron

Answer 3

0

Question 4

Relative charge of an electron

Answer 4

-1

Question 5

Relative mass of a proton

Answer 5

1

Question 6

Relative mass of a neutron

Answer 6

1

Question 7

Relative mass of an electron

Answer 7

0.0005

Question 8

What is meant by the term compound?

Answer 8

Two or more different atoms which are chemically bonded together

Question 9

What should i include when there is a graph with a fixed temperature?

Answer 9

That the temperature remains steady and comsistent

Question 10

How do you calculate the relative formula mass?

For example, H2O

Answer 10

2 (1) +16 = 18

Question 11

What is the triangle to remember how to calculate the moles, mass or relative mass?

Answer 11

. Mass
————————– Mole M.R.
Moles X Relative mass

Question 12

Define the term mole

Answer 12

A unit to measure the amount of any substance

Question 13

What is avogadros number

Answer 13

6.02 x 10^23