Molecules and Life Quiz

What are the building blocks of matter?

• Atoms

• Molecules

• Compounds

• Elements

The atomic number is the same as the number of _____.

What is the atomic mass?

• Number of protons

• Number of neutrons

• Number of protons and neutrons

• Number of electrons

Which of the follokwing are TRUE about compounds?

Choose all that apply.

• They can be separated by physical means.

• Are formed by two or more kinds of substances combined at fixed ratios.

• They can't be broken down into simpler substances.

• Can only be separated by chemical reactions.

What are the characteristics of heterogeneous mixtures?

Choose all that apply.

• Have a uniform composition

• Have multiple phases or layers

• Can be easily distinguished

• Cannot be separated into simpler substances

What is the solvent in a solution?

• The substance that dissolves

• The substance that is dissolved

• The mixture of substances

• The solid part of the solution

Explain: What is the difference between a substance and a mixture? (The teacher will evaluate the written response)

Evaluate responses using AI:

OFF

Identify the components of this mixture. Identify the mixture shown.

a

b

c

Solvent

Solute

Solution

____ mixtures have a single phase and uniform composition throughout.

Three sub-atomic particles in atoms are ___.

• neutrons

• electrons

• orbitals

• protons