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son4ous [18]
4 years ago
13

Which kingdoms contain organisms that are

Chemistry
1 answer:
solniwko [45]4 years ago
8 0

Answer: the answer is animalia and plantae

Explanation: I just took the test.

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The law of conservation of mass states that in a chemical reaction, mass is neither created nor destroyed. that means, the total
g100num [7]
Well all reactions need energy to start it. The light is the energy that the reaction requires to start it. Sunlight also has no mass in the first place so laws of conservation of mass don't apply to it.

5 0
4 years ago
Read 2 more answers
There are eight consitutional isomers with the molecular formula C4H11N.
Dmitriy789 [7]

Answer:

See figure 1

Explanation:

We have to remember that in the isomer structures we have to <u>change the structure</u> but we have to maintain the <u>same formula</u>, in this case C_4H_1_1N.

In the formula, we have 1 nitrogen atom. Therefore we will have as a main functional group the <u>amine group</u>.

In the amines, we have different types of amines. Depending on the number of carbons bonded to the "N" atom. In the <em>primary amines</em>, we have only 1 C-H. In the <em>secondary amines</em>, we have two C-N bonds and in the <em>tertiary amines</em>, we have three C-N bonds.

With this in mind, we can have:

-) <u>Primary amines:</u>

1) n-butyl amine

2) sec-butyl amine including 2 optical isomers

3) isobutyl amine

4) tert-butyl amine

-) <u>Secondary amines:</u>

5) N-methyl n-propyl amine

6) N-methyl isopropyl amine

7) N, N-diethyl amine

-) <u>Tertiary amines:</u>

8) N-ethyl N, N-dimethyl amine

See figure 1

I hope it helps!

8 0
3 years ago
Which of the following best describes what happens when hydrogen and oxygen to form water?
Sever21 [200]

Atoms are combining to form molecules

6 0
3 years ago
How do we use biomass as an energy source?
kherson [118]
Biomass<span> contains stored </span>energy<span>. That's because plants absorb </span>energy<span> from the sun through the process of photosynthesis. When </span>biomass<span> is burned, this stored</span>energy<span> is released as heat. Burning </span>biomass<span> releases carbon dioxide

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6 0
4 years ago
Why are plants called producers
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Answer:

They make their own food

Explanation:

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