Elements, Compounds, Mixtures #1

A mixture that appears to be evenly mixed throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

Tags

NGSS.MS-PS1-1

1 A substance made up of two or more chemically combined elements is —

• an element

• mixture

• compound

• solution

Tags

NGSS.MS-PS1-1

A substance that cannot be broken down into any other substance by ordinary chemical means is called —

• molecule

• mixture

• element

• compound

Two or more physically combined substances form —

• a compoud
• an acid
• an element
• a mixture

Tags

NGSS.MS-PS1-1

What is an example of a mixture?

• Table salt
• Salt water
• Oxygen
• Air

A substance made of only one type of atom is called —

• an element
• a mixture
• a compound
• a salt

Tags

NGSS.MS-PS1-1

Which of the following is a way in which elements and compounds are similar?

• Elements and compounds are pure substances.
• Elements and compounds are both made up of different kinds of atoms.
• Elements and compounds can both be broken down by physical means.
• Elements and compounds are listed on the periodic table.

The smallest part of an element that retains the properties of the element is the

• nucleus.

• electron

• atom

• neutron

Tags

NGSS.MS-PS1-1

Which is the best example of a pure substance?

• pizza

• gold

• saltwater

• air

Tags

NGSS.MS-PS1-4