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romanna [79]
3 years ago
15

Give an example of when a plant or animal might use energy they have stored.

Chemistry
1 answer:
olasank [31]3 years ago
8 0

Answer:

hunting for other animals or when they are really hungry

Explanation:

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Which ions are isoelectronic with Krypton?
Tresset [83]

Answer:

Bromine

Explanation:

Bromine with an atomic number of 35 acquires one electron to attain 36 electrons. This makes it isoelectronic with krypton.

5 0
3 years ago
The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCl (aq)) in 133 mL of water is ___ M (2 decimal
Lera25 [3.4K]

The molarity is 3.50 M/L.

Explanation:

Molarity is found to know the amount of the solute ions present in the given volume of solution. So we determine it using the ratio of the moles of solute to the volume of the solution.

As here the weight of the solute which is hydrochloric acid is given as 17g, so we need to find the moles of it. This can be done by dividing the given amount of HCl with the molecular weight of HCl.

Molecular weight of HCl = 1.01 + 35.45 = 36.46 g/mol

So the number of moles of HCl present here will be

No.of moles = \frac{17}{36.46} =0.466

So, 0.466 moles of HCl is present in the solution.

Molarity = \frac{No.of moles of solute}{Volume of solution} = \frac{0.466}{133*10^{-3} }

Molarity = 3.50 M/L

Thus, the molarity is 3.50 M/L.

7 0
4 years ago
Nitrogen dioxide reacts with the sunlight and combines with particles from smoke and soot to form industrial smog.
strojnjashka [21]

Answer:Nitrogen dioxide reacts with the sunlight and combines with particles from smoke and soot to form industrial smog. is true

Explanation:

4 0
3 years ago
Define energy transformation.
Lana71 [14]

Answer:

Enery transformation is when a forn of energy changes into another.

Explanation:

An example of this would be a lamp. The lamp gets its energy through electricity. This electricity is later turned into light energy. Electrical energy to light evegy.

7 0
3 years ago
8. Rewrite each of the following as an "ordinary” decimal
saveliy_v [14]

Answer:

????????

Explanation:

3 0
3 years ago
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