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Murljashka [212]
2 years ago
6

What is essential to living things because many of the chemical reactions that occur in living things require it?

Chemistry
2 answers:
Gennadij [26K]2 years ago
6 0
<span>Oxygen, carbon dioxide(for respiration and photosynthesis), nitrogen(needed to make proteins which in turn are needed for enzymes and hormones), hydrogen(to be combined with carbon and oxygen to make organic compounds or food for living organisms), and sunlight.</span>
erma4kov [3.2K]2 years ago
5 0
Water because water acts as a solvent to chemical reactions. If we wouldn't have water maybe there wouldn't be any living things.
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A/1 * B/C = D
grigory [225]

Answer : 4.8 florins can you exchange for your 4 guilders.

Solution : Given,

The current exchange rate for every 2.4 florins is 2.0 guilders

As per question,

The exchange rate is 2.0 guilders for every 2.4 florins

The exchange rate is 1 guilders for every \frac{2.4}{2.0} florins

The exchange rate is 4 guilders for every \frac{2.4}{2.0}\times 4=4.8 florins

Therefore, the 4.8 florins can you exchange for your 4 guilders.


3 0
2 years ago
Which functional group is within the compound shown below?
mamaluj [8]

Answer:

A. Amino

example phenylalanine

Explanation:

B. Ester is R-CO-OR

example nitroglycerin

C. Hydroxyl R-OH

example ethanol

D. Carbonyl R-(C=O)-R

examples formaldehyde

4 0
2 years ago
What controls flowering in many<br> plants?
katrin2010 [14]

Answer:

All flowering is regulated by the integration of environmental cues into an internal sequence of processes. These processes regulate the ability of plant organs to produce and respond to an array of signals. The numerous regulatory switches permit precise control over the time of flowering.

Explanation:

3 0
3 years ago
8. How do you know when kinetic energy is not changing?
Nostrana [21]
Answer:

Kinetic energy is the energy of motion so to figure out that it’s not changing is if the object is still moving. If it’s staying still or is at rest, it is presenting potential energy, which is when energy is being stored inside the object.
5 0
2 years ago
Suppose that a substance in a beaker is heated over a burner in a science lab. Which observation would most likely indicate that
victus00 [196]

Answer:

D

Explanation:

the production of an odor would indicate that the heat ignited a chemical reaction

6 0
3 years ago
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