Compounds

Question 1

What are compounds?

Answer 1

-Atoms of different elements can be combined together to create compounds.
- (When elements mix together)
-A compound contains at least 2 different elements

Question 2

How are the atoms in compounds held together?

Answer 2

They are held together by chemical bonds.

Question 3

How do you separate a compound?

Answer 3

You can sperrte it into its elements by using a chemical reaction.

Question 4

Carbon + Oxygen = ?

Answer 4

Carbon dioxide

Question 5

The formula for sulfuric acid is H2SO4
How many atoms are in each molecule?

Answer 5

There are 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.

Question 6

The formula for Calcium Hydroxide is Ca(OH)2
How many atoms are in each molecule?

Answer 6

There is 1 calcium atom, 2 oxygen atoms, and 2 hydrogen atoms
- this is because the square number on the end of the bracket means that there is 2 of everything in the brackets.

Question 7

What’s the formula for Sodium Chloride?

Answer 7

NaCl