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Nana76 [90]
3 years ago
12

Which of these groups CANNOT harvest energy from the sun?

Chemistry
2 answers:
Tomtit [17]3 years ago
8 0
Viruses..................
Lyrx [107]3 years ago
4 0
It is Viruses. Algae, plants and bacteria all harvest energy from the sun.
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1. Explain why the cold water and hot water in Part 1 moved the way they did within the tub of
neonofarm [45]

Answer:

Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. <u>Cold water is more dense and will sink in room-temperature water.</u>

<u></u>

5 0
2 years ago
Caffeine (C8H10N4O2) is a stimulant found in coffees and teas. When dissolved in water, it can accept a proton from a water mole
Olenka [21]

Answer:

See figure 1

Explanation:

If we want to find the acid and the Brønsted-Lowry base, we must remember the definition for each of these molecules:

-) Acid: hydrogen donor

-) Base: hydrogen acceptor

In the <u>caffeine structure,</u> we have several atoms of nitrogen. These nitrogen atoms have the ability to <u>accept</u> hydronium ions (H^+). Therefore the caffeine molecule will be the base since it can accept

If caffeine is the base, the water must be the acid. So, the water in this reaction donated a hydronium ion.

<u>Thus, caffeine is the base and water the acid. (See figure 1)</u>

3 0
3 years ago
PLEASE HELP!!
igomit [66]
Answer is: the specific heat capacity of the metal is <span>A) 0.129 J/gK.
</span>m(metal) = 15,1 g.
Q = 48,75 J.
ΔT = 25 K.
Q = C · ΔT · m(metal).
C = Q ÷ ΔT · m(metal).
C = 48,75 J ÷ 25 K · 15,1 g.
C = 0,129 J/g·K.
3 0
3 years ago
Read 2 more answers
Helppp.....Which one of the following statements does not describe gold?
Mariulka [41]

Answer: D. It reacts with oxygen in the presence of moist air.

Explanation:

The element Gold, does not react with oxygen,hence it is not affected by corrosion,neither does it rust.

4 0
3 years ago
Carbon dioxide is released in________and taken in by plants in ______
alex41 [277]

Answer: A

Explanation:

Plants take in sunlight, water, carbon dioxide. The produce sugar (glucose) and other things. It could not be deforestation. It can't be evaporation, that is from the water cycle. It cant be C due to it talking about precipitation, which is also from the water cycle. Therefore, it can only be A

3 0
3 years ago
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