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-Dominant- [34]
3 years ago
11

Question 1 of 10

Chemistry
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

A. 1km

Explanation:

The 1 km is equal to 1000 m.

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If a neutral atom has 22 protons within its nucleus, how many electrons will it have orbiting the nucleus?
astraxan [27]

Answer:

If a neutral atom has 22 protons inside its nucleus, it will have 22 electrons orbiting the nucleus.

Explanation:

An atom is the smallest amount of matter that undergoes chemical changes and is made up mainly of subatomic particles: electrons, protons and neutrons. The atomic nucleus is made up of protons, with a positive electric charge, and neutrons, which have no charge, while electrons, with a negative electric charge, revolve around the nucleus.

A neutral atom is one that lacks an electrical charge due to a trade-off between the number of its protons and electrons. In other words, although it has an electric charge, it is balanced between protons, electrons and neutrons. So in a neutral atom, the number of electrons equals the number of protons because the negative charge of the electrons is offset by the positive charge of the protons.

<u><em>If a neutral atom has 22 protons inside its nucleus, it will have 22 electrons orbiting the nucleus.</em></u>

3 0
4 years ago
Help please and thanks
Likurg_2 [28]
The first one is 2
The second is 1
The third is 6
And the fourth is 3
4 0
4 years ago
I find that there are 500 atoms of U-235 and 1500 atoms of Pb-207. If we assume the mineral contained only parent and no daughte
swat32

Explanation:

From the question it can be infered that initially only parent atoms were present in the rock and  no daughter atom. So, initially there was only uranium atom and no lead atom. So, in total there were 500+1500= 2000 uranium atom. And no lead tom was there.

3 0
4 years ago
What is locked up carbon dioxide
katen-ka-za [31]
Basically it means carbon dioxide is removed from the atmosphere and is trapped in e.g. calcium carbonate (like shells), rocks, oceans etc. 
4 0
3 years ago
Why is the circulatory system so important? please explain in own yours I keep getting copy and paste please don’t do that it’s
expeople1 [14]

<u>Importance </u><u>of </u><u>Circulatory </u><u>System</u>

  • This system helps in transportation of respiratory gases like O2 and CO2, nutrients, hormones, enzymes, minerals, waste products.
  • It helps in storage of essential substances for future use.
  • It also generates heat to the body.

Hope you could understand.

If you have any query, feel free to ask.

7 0
3 years ago
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