subject
Biology, 18.12.2019 01:31 decarlosgibbonsgggg

Why is it possible to float a small paperclip very carefully on top of water? (2 points)

hydrogen bonds between water molecules create surface tension.

unpaired electrons on water molecules at the surface create surface tension.

only water close to freezing and denser than usual will have enough surface tension.

covalent bonds between the hydrogen and oxygen of water molecules create surface tension.

ansver
Answers: 2

Another question on Biology

question
Biology, 22.06.2019 00:10
Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria
Answers: 2
question
Biology, 22.06.2019 09:30
2. does the given statement describe a step in the transformation of the graph off(x) = x2 that would result in the graph of g(x) = -5x + 2)? a. the parent function is reflected across the x-axis. o yes nob. the parent function is stretched by a factor of 5. yes noonc. the parent function is translated 2 units up.o yes
Answers: 2
question
Biology, 22.06.2019 13:00
Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.
Answers: 3
question
Biology, 22.06.2019 18:30
12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.
Answers: 1
You know the right answer?
Why is it possible to float a small paperclip very carefully on top of water? (2 points)

Questions
question
English, 14.07.2019 22:30
question
English, 14.07.2019 22:30
Questions on the website: 13722363