Chemistry of Life Test Review Honors

What 3 subatomic particles make up atoms?

• Isotopes, protons, covalent bonds
• quarks, quirks, compounds
• protons, neutrons, isotopes
• protons, neutrons, electrons

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NGSS.MS-PS1-1

The main types of chemical bonds are:

• ionic and subliminal
• covalent and hydrogenated
• ionic and covalent
• ionic and flourite

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NGSS.HS-PS1-4

The electrons involved in chemical bonds are called ___________ electrons.

• valence
• ionic
• Van Der Waals
• covalent

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

Life on Earth is based on the element:

• helium
• gold
• carbon
• water

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NGSS.HS-LS1-6

The major macromolecules of life are:

• lipids, proteins, carbohydrates, nucleic acids
• nucleic acid and water
• lipids and fats
• DNA

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NGSS.MS-LS1-7

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

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NGSS.MS-PS1-4

Capillary Action

• The property of water that allows ice to float on the surface of liquid water

• The property of water that allows it to dissolve polar substances

• When water molecules stick to other surfaces

• The property of water that allows water to move up a thin tube (or the stem of a plant) by itself

Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Tags

NGSS.MS-PS1-1

Water travels up from the roots of a tree to the top because of

• adhesion and cohesion

• surface tension

• specific heat capacity

• density of water compared to ice