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maksim [4K]
3 years ago
6

How many atoms are in 8 grams of helium

Chemistry
1 answer:
Mrrafil [7]3 years ago
8 0
12 x 10^23 atoms, i hope this helps
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Which element decreases its oxidation number in this reaction? bicl2 + na2so4 → 2nacl + biso4?
kifflom [539]
The balanced reaction is as follows;
BiCl₂ + Na₂SO₄ --> 2NaCl + BiSO₄
this is a double displacement reaction 
the oxidation number of Bi is +2 in both BiCl₂ and BiSO₄
oxidation number of Cl is -1 in both BiCl₂ and NaCl 
oxidation number of Na is +1 in both Na₂SO₄ and NaCl
oxidation numbers of elements in SO₄²⁻ remains the same in both compounds.Therefore the oxidation state in any of the elements in the reaction doesn't change. Neither of the elements show an increase or decrease in the oxidation numbers .
Answer for this question is no element decreases its oxidation number.

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3 years ago
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Aleksandr-060686 [28]

Answer:

Hello There!!

Explanation:

I believe the answer is how fast the molecules are vibrating.

hope this helps,have a great day!!

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When pollution or harmful substances get into an environment what is it called
sweet [91]
Wouldn’t it be pollution? Or......
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A car is traveling 90.0 kilometers per hours. What is its speed in miles per hour?
slavikrds [6]

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