Cpt 17 & 18 recap

Sand can dissolve in water. 

• True

• False

2. An / a _______ is a substance that cannot be split up into simpler substances by chemical means. 

• • Element 

• • Compound 

• • Mixture 

• • Solvent 

a mixture consists of two or more different substances mingled with each            other but not chemically combined 

• True

• False

Who used the word element to describe a simple substance 

• Robert Burke

• Sean Boyle

• Robert Boyle

• Michael Boyle

3. What is the chemical symbol for Oxygen? 

• K

• O

• P

• E

4. What is the chemical symbol for Gold? 

• • Ne  

• • Cl 

• • Au

• • Mn 

A solution is a perfect mixture of a solute and a solvent. 

• True

• False

6. X is an element. It is a liquid with a silvery colour. It was often used in old thermometers. 

What is its name? 

• Sliver

• Mercury

• Iron

• Aluminium

a crystal is a solid with a regular shape 

• True

• Flase

a saturated solution is one in which there is a large amount of solute in a small amount of solvent 

• True

• False