Atoms and Classifying Matter

Which of the following is an example of a compound?

• Copper

• Iron

• Carbon

• Water

Tags

NGSS.MS-PS1-1

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

• 1

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1

Which type of matter can be separated by physical means?

• Atom

• Element

• Compound

• Mixture

Which substance is composed of only one type of atom?

• Water

• Gold

• Salt

• Sugar

What is the smallest unit of an element that retains the properties of that element?

• Electron

• Molecule

• Neutron

• Atom

Scientists can identify an element by looking at the structure of a single

• Atom

• Neutron

• Molecule

• Electron

Tags

NGSS.MS-PS1-1

When potassium and bromine atoms form chemical bonds, which of these is produced?

• An element

• A mixture

• A compound

• A new form of matter

Tags

NGSS.MS-PS1-1

Which mineral is also an element based on its chemical composition?

• Graphite. Chemical Composition is C

• Quartz. Chemical Composition is SiO2

• Calcite. Chemical Composition is CaCO3

• Hematite. Chemical Composition is Fe2O3

Tags

NGSS.MS-PS1-1

Calcium carbonate (CaCO3)

is considered a compound because it is made up of two or more

• Molecules

• Elements

• Gases

• Solids

Tags

NGSS.MS-PS1-1

The compound potassium sulfate,

K2SO4,

is composed of

• 2 atoms of potassium, 1 atom of sulfur, and 4 atoms of oxygen.

• 2 atoms of potassium, 4 atoms of sulfur, and 4 atoms of oxygen

• 2 molecules of potassium and 1 molecule of sulfate.

• 1 molecule of potassium and 2 molecules of sulfate.

Tags

NGSS.MS-PS1-1