Elements, Compounds and Mixtures

Chlorine gas,  $Cl_2$  is a 

• element 

• compound

• mixture

What is the chemical name of this compound?

• NHHH

• NH $_3$

• N3H

• N $_3$ H

What is the chemical name for Carbon dioxide?

• CO2

• CO

• CD

• CO $_2$

Calcium bromide is a compound made from...

• Calcium and Bromide

• Calcium and Bromine

• Cal, cium, bro and mine

• It is a mixture, not a compound

Elements are always found alone, as single atoms

• True

• False

• Not sure

Which of these is not in the compound copper nitrate?

• Copper

• Nitrogen

• Oxygen

• Hydrogen

This picture shows ...

• A mixture of a compound and an element

• A mixture of two compounds

• A mixture of three elements

• A compound

This picture shows...

• A mixture

• A compound

• An element

What type of reaction happens inside a kettle?

• Chemical

• Physical

• Chain

• Don't know