Chemistry Pt.1 Review Game

A student is testing a solid material to determine whether it is a pure substance or a mixture. Which observation would MOST likely indicate that the material is a mixture?

• The material has crystals of two different colors.

• The material does not dissolve completely in water.

• The material does not melt when it is heated over a burner.

• The material reacts with an acid solution to form bubbles of gas.

Since sodium chloride is classified as a compound, a sample of it contains

• atoms that are gases, liquids, and solids.

• more than one kind of atom.

• matter that cannot be reduced to atoms.

• a solution of atoms and molecules.

Which particle type can be identified as being from a specific element?

• electron

• proton

• neutron

• atom

How many atoms of hydrogen are in a molecule of glucose, C₆H₁₂O₆?

• 3

• 6

• 12

• 24

How many elements are in one formula unit of the compound FeC₅O₅?

• 3

• 11

• 5

• 10

What is the charge of a proton?

• neutral

• positive

• negative

What is the charge of a neutron?

• neutral

• positive

• negative

Which is true about the compounds carbon monoxide (CO) and carbon dioxide (CO₂)?

• The compounds have the same properties because they are both gases.

• The compounds have the same properties because they contain the same elements.

• The compounds have different properties because they are found in different amounts in the atmosphere.

• The compounds have different properties because they contain the same elements in different quantities.

Which is true about a compound?

• It is made up of one type of atom.

• It can be formed through a physical reaction.

• It can be changed into simpler substances through a physical change.

• It is a pure substance containing elements that are chemically combined.

Which is an example of a mixture?

• sodium chloride

• fruit punch

• water

• carbon