subject
Chemistry, 16.11.2020 22:30 hanniahrnz12345

Help me please. nobody ever helps me in time. Question 1 (3 points)
(08.01 LC)
Frozen water is less dense than liquid water, allowing lake organisms to survive winter. (3 points)

True
False
Question 2 (3 points)
(08.01 LC)
Which of the following is a correct statement about water? (3 points)

a
Hydrogen bonding causes water to be strongly cohesive.

b
Hydrogen bonding causes water to have a low surface tension.

c
Water is a universal solvent because polar and nonpolar solutes can dissolve in it.

d
Water is less dense as a liquid than as a solid because of changes in bond structure.

Question 3 (3 points)
(08.01 LC)
What change would increase the amount of solid solute able to be dissolved in liquid water? (3 points)

a
Decreasing rate of stirring

b
Decreasing surface area

c
Increasing pressure

d
Increasing temperature

Question 4 (3 points)
(08.01 MC)
Why is oil unable to dissolve well in water? (3 points)

a
Oil molecules are too large to fit between the closely spaced water molecules in the liquid state.

b
Oil is less dense than water, which means oil and water are not compatible for mixing together.

c
Water has strong cohesive properties, so polar oil is unable to pull the water molecules apart.

d
Water is polar and oil is nonpolar, which means water and oil have no attraction for each other.

Question 5 (3 points)
(08.01 MC)
Which of the following describes an impact of the specific heat of water on the planet and the life forms that exist on it? (3 points)

a
Places near the sea show high temperature variation.

b
Inland cities have moderate temperatures throughout the year.

c
Marine life experiences sudden spikes and drops in temperature.

d
Sweat requires a lot of thermal energy to be absorbed to evaporate.

Question 6 (5 points)
(08.01 MC)
Explain how the solubility of water is useful in maintaining various life processes. (5 points)

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 08:30
What is a metal replacement reaction
Answers: 3
question
Chemistry, 22.06.2019 09:00
Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?
Answers: 1
question
Chemistry, 22.06.2019 13:30
What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves
Answers: 1
question
Chemistry, 22.06.2019 15:30
The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
Answers: 1
You know the right answer?
Help me please. nobody ever helps me in time. Question 1 (3 points)
(08.01 LC)
Frozen w...
Questions
question
English, 09.12.2020 23:10
question
Mathematics, 09.12.2020 23:10
question
Mathematics, 09.12.2020 23:10
Questions on the website: 13722363