Physical Science

Elements which are shiny, conduct electricity and heat are called

• metal

• nonmetal

• metalloid

• nonexistent

What is the atomic mass of Neon?

• 10

• 30

• 10.18

• 20.18

What does the Law of Conservation of Matter state?

• Matter cannot be created or destroyed in a chemical reaction, it just changes into something new/changes form.

• Matter can only be lost in a chemical reaction.

• Matter can only be gained in a chemical reaction.

• Matter can be gained and lost in a chemical reaction.

Tags

NGSS.MS-PS1-5

What causes pressure?

• The walls of the container

• The vacuum in the container

• The collisions of the particles

• Atmospheric pressure acting on the outside walls

The relationship of which two variables are compared in Boyle's Law?

• pressure & volume

• volume & temperature

• temperature & pressure

• volume & moles (amount of gas)

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams

• 75 grams

• 40 grams

• 12 grams

Tags

NGSS.MS-PS1-2

Which substance is MOST soluble at 0 ºC?

• KI

• NaNO₃

• NaCl

• Ce₂(SO₄)₃

Tags

NGSS.MS-PS1-2

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

Tags

NGSS.MS-PS1-2

Which subatomic particle has a positive charge?

• proton

• neutron

• electron

What is the atomic mass of "F"

• 9

• 18

• 17

• 19

Tags

NGSS.MS-PS1-1