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stiks02 [169]
4 years ago
9

What atomic nucleus has the fewest protons

Chemistry
1 answer:
maksim [4K]4 years ago
3 0
Hydrogen-

Hydrogen is the answer because the number of protons is the atomic number.  All the elements have different atomic numbers and hydrogen has the least with an atomic number of 1.
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All modern fertilizers use PO43- as a source of phosphorus. Use your knowledge of the old methods to determine the moles of phos
tamaranim1 [39]

Answer:

The answer is 0.023 moles of phosphorus

Explanation:

The 15-15-15 fertilizer is a fertilizer of great versatility, made with nitrogen, phosphorus and potassium, which makes it one of the fertilizers most used for fertilizer in the sowing plant, thus covering the crop requirements from planting. .

This fertilizer consists of 14.25% phosphorus pentoxide (P2O5). Therefore, we have to remove 14.25% at 10 grams of 15-15-15 fertilizer to calculate the moles of phosphorus. As follows:

Grams of P2O5 = 10 g x 0.1425 = 1.425 g

We calculate the molecular weight of phosphorus. We use the periodic table:

Phosphorus molecular weight = 2 x 30.97 = 61.94 g/mol

Now we calculate the moles of phosphorus in the fertilizer:

Phosphorus moles = 1,425 g/61.94 g/mol = 0.023 moles

8 0
3 years ago
Discuss Newland octave law and it's rejection
Delvig [45]
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I hope this helps!
7 0
4 years ago
Explain why scientists find the particulate matter of theory useful
BARSIC [14]

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Thank you,

Eddie

6 0
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denis-greek [22]

Answer:

0.63g

Explanation:

5 0
3 years ago
True or false: atoms are electrically neutral; that is they do not have a charge.
AfilCa [17]
Its true, By definition, an atom is electrically neutral<span> it has the same number of protons as it does electrons, plus some number of neutrons depending on the isotope</span>
3 0
3 years ago
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