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katen-ka-za [31]
3 years ago
9

2 (NH4)2Cr2O7 how many atoms​

Chemistry
1 answer:
Ludmilka [50]3 years ago
4 0
2+8+2+4+7=23, i think that should be the answer just add everything and multiply if you have to
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How many atoms are in each of the following molecules:A. CO2B. N2C. CHCOOH
zlopas [31]
<h2>Answer:</h2>

A) 3 atoms - 1 atom of Carbon and 2 atoms of oxygen.

B) 2 atoms of Nitrogen.

C) 6 atoms - 2 Carbon atoms, 2 Hydrogen atoms, and 2 Oxygen atoms.

<h2>Explanations:</h2>

A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound. Molecules are made up of atoms.

According to the following information, we are to find the number of atoms in the given molecules.

A) For carbon dioxide CO₂, this molecule is made of 3 atoms - 1 atom of Carbon and 2 atoms of oxygen.

B) For the compound N₂, this molecule is made up of 2 atoms of Nitrogen.

C) For the compound CHCOOH​, this molecule consists of 6 atoms - 2 Carbon atoms, 2 Hydrogen atoms, and 2 Oxygen atoms.

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11 months ago
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kolezko [41]

Answer:

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8 0
3 years ago
100 POINTS !!!! TO RIGHT AWNSER!!!
Alecsey [184]
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3 0
3 years ago
Read 2 more answers
Round to 4 significant figures.<br> 0.007062
lapo4ka [179]

Answer:

Hey there!

This is already rounded to four significant figures!

Zeroes after the decimal but before the 7 don't count, and 7, 0, 6, and 2 count as significant figures.

So, the answer would be 0.007062.

Let me know if this helps :)

8 0
2 years ago
Are nails in a jar with water a chemical change
Digiron [165]
I would say it is a chemical change because after a while, the nails start to rust. Now they only rust after about a week though. But rust is a chemical change.
7 0
3 years ago
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