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olga2289 [7]
3 years ago
10

Pick a key concept that you understand well and explain it in a way that an elementary school student could understand.

Chemistry
1 answer:
Gwar [14]3 years ago
5 0
Colors!!
We know about all the colors in the rain bow but do you know how most of them are made?

Red and blue and yellow can make sooooo many different colors if you mix them together.

For example red + blue = purple! This is because red, blue and yellow are primary colors and these colors are colors that can make up other colors.
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Matter does NOT exist in which form?
Sergeu [11.5K]

Answer:

vacuum

Explanation:

vacuum is the form by which matter cant exist

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Is Jesus Christ real??
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In the Bohr model of the atom, the electrons move in fixed, ________ paths around a dense, positively-charged nucleus. On the ot
trapecia [35]
Answer:

Answers are in parentheses.

In the Bohr model of the atom, the electrons move in fixed, (circular) paths around a dense positively-charged nucleus. On the other hand, the quantum mechanical model shows the probability of finding an electron as a (cloud) of negative charge.
6 0
3 years ago
Under certain conditions the rate of this reaction is zero order in dinitrogen monoxide with a rate constant of ·0.0047Ms−1: 2N2
leva [86]

Answer:

250 mmol are left after 26.60 secs ≅ 26.6 seconds

Explanation:

zero order kinetics formula is:

[A] = [A₀] - kt

where [A] = amount left; [A₀] = amount remaining; k = rate constant; t = time

concentration [A₀] = mole/volume = 0.5 mole/2.0L = 0.25

[A] = 0.25 mole/2.0L = 0.125 M

k = 0.0047 Ms⁻¹

t = {[A]-[A₀]}/-k = (0.125 - 0.25)/(-0.0047) = 26.60 seconds = 26.6 seconds

the amount is reduced by half after 26.6 seconds

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3 years ago
A person's heartbeat is 66 beats per minute. If his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does th
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