Chemistry of Life 2 (Water and Life)

Chemistry of Life 2 (Water and Life)

9th - 12th Grade

26 Qs

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Chemistry of Life 2 (Water and Life)

Chemistry of Life 2 (Water and Life)

Assessment

Quiz

Biology

9th - 12th Grade

Medium

Created by

Brett Davis

Used 12+ times

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26 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Water is a(n) _ substance because it does not contain carbon. Each water molecule contains _ atoms of hydrogen

organic, 1

organic, 2

inorganic, 1

inorganic, 2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_ bonding is found in water. These bonds involve an _ sharing of electrons due to a large electronegativity difference between hydrogen and oxygen

Covalent, uneven

Covalent, even

Ionic, uneven

Ionic, even

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The partial charge of an oxygen atom in a water molecule is _ because it has a higher electronegativity than hydrogen. Water molecules as a whole are _ meaning there are is negatively and positively charged end (dipoles)

negative, polar

negative, nonpolar

positive, polar

positive, nonpolar

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The polarity of water allows for _ bonding to exist between molecules. In this IMF the oxygen atom of a water molecule has a weak attraction to _ atom(s) of nearby molecules

hydrogen, hydrogen

hydrogen, oxygen

covalent, hydrogen

covalent, oxygen

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the polarity of water/hydrogen bonding vitally important to living things?

It allows for thermoregulation

It allows for cohesion and adhesion

It allows ice to float

It makes water an excellent solvent

All answers are correct

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_ allows water molecules to stick to surfaces. This is only possible if the surface is _

Adhesion, polar/charged

Adhesion, nonpolar/uncharged

Cohesion, polar/charged

Cohesion, nonpolar/uncharged

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cohesion and adhesion are vitally important for _ life that must must transport water for use in photosynthesis. Water is obtained through _ and moved upwards through water conducting cells

plant, roots

plant, leaves

animal, roots

animal, leaves

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