Pre-test Chemistry

What type of matter is the salt NaCl?

• A pure substance known as a compound

• A heterogeneous mixture

• A homogeneous mixture

• A pure substances known as an element

Which of the following is a compound?

• Water

• Lemonade

• Whipped Cream

• Trail Mix

Tags

NGSS.MS-PS1-1

Which element has higher reactivity than Lithium (Li)?

• H

• Be

• He

• Na

Which element has properties similar to Silicon (Si)?

• Ge

• Al

• S

• Se

What is the name of the group of elements that contains the most reactive element on

earth? The element is a gas with one valence electron in its outermost shell.

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Noble Gasses

What is the amu of the Nitrogen atom?

• 7

• 14

• 21

• 49

Tags

NGSS.MS-PS1-1

What subatomic particle revolves around the nucleus of an atom?

• Proton

• Neutron

• Neon

• Electron

Which of the following is not a subatomic particle?

• Proton

• Nucleus

• Electron

• Neutron