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QveST [7]
3 years ago
9

1. How many particles are present in 800 grams of copper (II) sulfide, CuS? The molar mass of CuS is 95.611 g/mol.

Chemistry
1 answer:
wel3 years ago
8 0
1-5.037077324x10^23

Use these magic triangles they will help you a lot

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A supercell thunderstorm may have a distinctive shape like _____.
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D. Pinwheel probably because think it’s a thunderstorm and supercells mean they are super big thunderstorms so I guess D
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. Nhiệt độ ban đầu của 344 g một mẫu sắt là 18,2oC. Nếu mẫu sắt này hấp thụ 2,25 kJ nhiệt lượng thì nhiệt độ cuối của mẫu sắt nà
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2 years ago
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How many moles of oxygen atoms are in 7.9E-1 moles of CO_2
Ilya [14]

Answer:

The number of moles of O atom in (7.9\times10^{-1}) mol of CO_{2} = 1.6

Explanation:

1 molecule of CO_{2} contains 2 atoms of O

So, (6.023\times 10^{23}) molecules of  CO_{2} contains (2\times6.023\times10^{23}) atoms of O.

We know that 1 mol of an atom/molecule/ion represents 6.023\times10^{23} numbers of atoms/molecules/ions respectively.

So, (6.023\times 10^{23}) molecules of  CO_{2} is equal to 1 mol of CO_{2}.

(2\times6.023\times10^{23}) atoms of O is equal to 2 moles of O atom.

Hence, 1 mol of CO_{2} contains 2 moles of O atom.

Therefore, (7.9\times10^{-1}) mol of CO_{2} contains (2\times7.9\times10^{-1}) moles of O atom or 1.6 moles of O atom.

3 0
3 years ago
Is carbonic acid (H2CO3) soluble in water?
NeTakaya

Answer:

it is soluble in water

Explanation:

mark brainliest pliiz cutee:)

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Which level is made up of organisms that break down dead organisms?
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Answer:

Explanation:

decomposers

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