Chemistry Final 1st Semester

Which of the following is a physical change?

• Burning of coal
• Digesting food
• Souring of milk
• Dissolving salt

Which of the following is a chemical change?

• Burning paper
• Cutting paper
• Folding paper
• Trimming paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a compound?

• Gold (Au)
• Water (H₂O)
• Hydrogen (H₂)
• Oxygen (O₂)

Tags

NGSS.MS-PS1-1

All of the following are elements EXCEPT:

• C
• Co
• CO
• Cl₂

What state(s) of matter has/have definite shape?

• liquid and gas
• solid only
• liquid only
• solid and liquid

What state(s) of matter has/have definite volume?

• solid only
• liquid only
• solid and liquid
• liquid and gas

What physical states take the shape of their container?

• solid and liquid
• liquid and gas
• solid and gas

Which of the following elements is a metal?

• Oxygen
• Fluorine
• Helium
• Sodium

What is the atomic mass of Ne?

• 30.180
• 10
• 20.180
• 10.180

Which of the following sections of the Periodic Table contains metals only?

• Period 6
• Group 2
• Period 2
• Group 18