Chemistry Midterm Exam Review

Which of the following represents a physical change?

• Baking soda mixes with vinegar to make bubbles

• Magnesium metal mixes with hydrochloric acid to make bubbles

• A crystalline solid being crushed into smaller pieces

• Potassium iodide mixing with lead nitrate to form a yellow solid

Which of the following is NOT a compound?

• CS₂

• CO₂

• CO

• Co

Tags

NGSS.MS-PS1-1

Pure water can be classified as a(n)...

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Which of the following is quantitative data?

• 89.11 mg

• luster

• blue

• Approximately 3 o'clock

Tags

NGSS.HS-PS1-7

NGSS.HS-PS2-1

NGSS.HS-PS3-1

True or False. Safety goggles must be worn at all times while working in the laboratory, even when cleaning up after an experiment.

• True

• False

Look at the image of the graduated cylinder. What volume does it read?

• 24 mL

• 24.0 mL

• 28 mL

• 28.0 mL

Chemistry is defined as the study of matter and...

• Molecules in living things

• The categories of matter

• The electrical current in matter

• The changes matter undergoes

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A student collects the following density data: 24.3 g/mL, 24.2 g/mL, 24.5 g/mL. The accepted density is 12.8 g/mL. How would you describe the student’s data?

• Accurate and Precises

• Accurate, but not Precises

• Precise, but not Accurate

• Not Accurate or Precise

Tags

NGSS.MS-PS1-2

The SI Unit for the amount of substance is...

• Kilogram

• Gram

• Candela

• Mole

The positively charged particle in the nucleus of an atom is the

• Neutron

• Proton

• Electron

• Gluon

Tags

NGSS.HS-PS1-8