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AVprozaik [17]
3 years ago
12

Why is Earth’s temperature just right for life?

Chemistry
2 answers:
Readme [11.4K]3 years ago
7 0

Answer: D

Explanation:

LenaWriter [7]3 years ago
5 0

Answer:

D. Earth’s atmosphere traps heat from the sun, which makes Earth’s temperature

suitable for living things.

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A block of metal has a mass of 0.0694 kg. It displaces 3.6 mL of water. What is it’s density in g/cm^3
Ivan

Answer:

19.28 g/cm^3 to the nearest hundredth.

Explanation:

The volume of water displaced = the volume of the metal.

density = mass / volume

0.0694 kg = 0.0694 * 1000

=  69.4 g.

Density = 69.4 / 3.6

= 19.28 g/cm^3.

4 0
3 years ago
Why is photosynthesis important to the ecosystem everywhere
topjm [15]

It creates  oxygen which every living thing needs to live. i hope this helps! :)

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3 years ago
An animal cell has a 0.9% saline environment is placed into a solution that is 9% saline. What will happen to the cell
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7 0
3 years ago
38) Which of the following is not a reaction of alcohol
mylen [45]
<h2>I guess...</h2>

<h3>Dehydration </h3>
8 0
3 years ago
The following reaction is part of the electron transport chain. Complete the reaction and identify which species is reduced. The
Olegator [25]

Answer:

FADH_2 + Q --> FAD + QH_2

The reactant that is reduced is FADH_2

Explanation:

The complete equation is as below:

FADH_2 + Q --> FAD + QH_2

<em>Recall that oxidation involves the gain of electrons while reduction involves the loss of electrons.</em>

In the above reaction, FADH_2 loses electrons to coenzyme Q and becomes reduced to FAD, hence the oxidizing agent. Coenzyme Q gains electrons and becomes oxidized to QH_2 , hence the reducing agent.

<u>In order words, </u>FADH_2<u> is reduced while coenzyme Q is oxidized.</u>

4 0
4 years ago
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