W14 Quiz 11/16/23 Matter and Change

1. What happens in any chemical change?

• The properties of the substances remain unchanged.
• The chemical reaction is reversible and the original substances can be obtained.
• The same substances are present but in different amounts.
• New substances with different properties are formed.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

1. Why can chemical changes often not be reversed?

• Chemical changes involve the breaking and forming of chemical bonds, which cannot be easily reversed.
• Chemical changes do not involve the breaking and forming of chemical bonds.
• Chemical changes can be easily reversed with the right tools.
• Chemical changes involve only physical changes, not chemical bonds.

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

1. What is the law of conservation of mass?

• The law of conservation of mass states that mass can be created in a closed system
• The law of conservation of mass only applies to chemical reactions
• The law of conservation of mass applies only to open systems
• The law of conservation of mass states that in a closed system, mass cannot be created or destroyed, only transformed from one form to another.

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NGSS.MS-PS1-5

List four states of matter.

• solid, liquid, gas, energy
• rock, water, air, fire
• metal, wood, plastic, glass
• solid, liquid, gas, plasma

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NGSS.MS-PS1-4

Which states of matter are most common on Earth?

• Plasma, liquid, and gas
• Solid, liquid, and gas
• Solid, plasma, and gas
• Liquid, gas, and Bose-Einstein condensate

What type of property is state of matter?

• Physical property
• Psychological property
• Biological property
• Chemical property

What block does (Fe) iron belong to?

• s block

• d Block

• p Block

• f Block

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NGSS.HS-PS1-1

What block is (He) helium belong to?

• s Block

• p Block

• d Block

• f Block

How many electrons does p subshell has?

• 14

• 10

• 6

• 2

How many orbitals does d subshell have?

• 8

• 5

• 3

• 1