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hammer [34]
3 years ago
12

There is a theory that gravity could pull galaxies back together, causing a reverse big bang.

Chemistry
2 answers:
Mrrafil [7]3 years ago
8 0

C. the expansion of the universe is accelerating

Alex787 [66]3 years ago
8 0

Answer:

C

Explanation:

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The temperature of evaporation is much higher for water than for alcohol. Without knowing more about the chemistry of alcohol, w
3241004551 [841]

Answer:

C

Explanation:

Alcohols are organic molecules characterized majorly by the presence of the OH group in their molecule. The OH group is majorly responsible for several of their characteristics. This include the formation of hydrogen bonds between alcohol molecules. While this makes them more inorganic than most organic compounds, comparatively the hydrogen bonding formed in alcohols is not as strong as that which is present in water.

The higher strength of the hydrogen bonding is responsible for some comparable properties. While water boils at a temperature of 100 degrees Celsius, alcohol boils at a temperature of 78 degrees Celsius. This is an evidence to the fact that hydrogen bonding in alcohol is less stronger that that in water.

4 0
3 years ago
Which ph is more acidic, a ph of 3, a ph of 7, or a ph of 9?.
Andrei [34K]

Answer:

pH of 3.

Explanation:

pH 1 to 6 is acidic.

7 is neutral.

8 to 14 is alkaline

8 0
3 years ago
Proportional tax<br> regressive tax<br> progressive tax
Crazy boy [7]

I am sorry can you explain it more?

3 0
3 years ago
Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once.
andre [41]

Answer:

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Explanation:

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5 0
3 years ago
What function does residual CO2 serve
Luba_88 [7]

The function does residual Co2 plays big part and in maintaining the body’s homeostasis. The addition of respiratory to reserve volume or residual volume.  The lung is the one that who protect the organs, so in exchange of oxygen and carbon dioxide.

6 0
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