Mod 1 Quiz 1: Water and its properties

Question 1

Ionic Bonds

Answer 1

Transfer of electrons

Question 2

Covalent Bonds

Answer 2

Shared electrons

Question 3

Polar Covalent Bonds

Answer 3

unequal sharing of electrons

Question 4

Hydrogen Bonds

Answer 4

IMF or Intermolecular force (attraction between molecules, not atoms) between water molecules

Question 5

Polar Molecule

Answer 5

Water
- Bent Shape that causes each end to have a partial charge

• polar covalent bonds between oxygen and hydrogen. Oxygen is more electronegative, so it hogs all the electrons.
• attracted to other polar molecules and ions b/c of partial charge and repels nonpolar molecules

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Question 6

Evaporation

Answer 6

Water goes from a liquid to a gas

Question 7

Condensation

Answer 7

Water goes from a gas to a liquid

Question 8

Freezing

Answer 8

Going from a liquid to a solid

Question 9

Melting

Answer 9

going from a solid to a liquid

Question 10

Precipitation

Answer 10

Falling from the sky

Question 11

Transpiration

Answer 11

Water evaporating of the leaves

Question 12

Evaporative Cooling

Answer 12

When our sweat evaporates, the water that goes from a liquid to a gas takes the heat with it, leaving a cooling effect. Heat leaves the body

Question 13

Cohesion

Answer 13

Water molecules will stick to each other because they are attracted to each other (hydrogen bonds)

Question 14

Adhesion

Answer 14

Water Molecules will stick to other things because they attracted to them (because of hydrogen bonds)

Question 15

Capillary Action

Answer 15

Water flows against gravity in narrow spaces

Question 16

Surface Tension

Answer 16

appearance of skin on top of water will allow it to resist other forces (because of cohesion)

Question 17

Boiling Point

Answer 17

The temperature at which water goes from a liquid to a gas (100 degrees celsius and 212 degrees farenheight)

Question 18

Freezing Point

Answer 18

The temperature at which water goes from a liquid to a solid (0 degrees celsius and 32 degrees farenheit)

Question 19

universal solvent

Answer 19

a substance that can dissolve many substances.

Question 20

hydrophillic

Answer 20

attracted to water

Question 21

hydrophobic

Answer 21

not attracted to water

Question 22

solution

Answer 22

homogeneous mixture (cannot see particles)

Question 23

Solute

Answer 23

the thing that gets dissolve

Question 24

Solvent

Answer 24

the thing that does the dissolving

Question 25

aqueous solution

Answer 25

solution in which water is the solvent

Question 26

pH

Answer 26

the amount of hydrogen ions in an aqueous solution

Question 27

Acidic

Answer 27

below 7

Question 28

neutral

Answer 28

at 7

Question 29

basic

Answer 29

above 7