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Lunna [17]
3 years ago
15

All atoms of the same element must have the same number of what?

Chemistry
2 answers:
Pavel [41]3 years ago
6 0

Answer:

A.

Explanation:

i just took the test and chose A.protons. lily~chan hopes she helps

torisob [31]3 years ago
3 0

Answer:

A. protons

I hope this helps!

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What effect does light have on plant growth?
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Explanation:

Light intensity influences the manufacture of plant food, stem length, leaf color and flowering. Generally speaking, plants grown in low light tend to be spindly with light green leaves. A similar plant grown in very bright light tends to be shorter, better branches, and have larger, dark green leaves.

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2 years ago
Ar (g) is placed in a 3.80 L container at 320 K. The gas pressure is 0.496 atm.
nata0808 [166]

Answer:

PV=nRt

Therefore n(number of moles)=PV/RT

=>(0.49×3.80)/(0.08206×320)

Therefore Number of moles is = 0.071mols

Explanation: By using the Real gas equation..

PV=NRT .

We can solve for the number of moles of Ar by making N the subject..

Always make sure you pressure is In atm, your Volume is in Litres and temperature in degree Kelvin.

Also Recall the universal gas constant R used in this type of questions which is 0.08206.

Hence l, by making N the subject we get our answer as

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