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belka [17]
4 years ago
8

How many atoms are in 169g of calcium?

Chemistry
1 answer:
uysha [10]4 years ago
5 0
The answer is 6.022• 10^23 atoms

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What happens after you leave oil and vinegar in a glass for a few minutes?
MAVERICK [17]

Answer:

An emulsion is formed.

Explanation:

An association (emulsion) of two liquids is formed, in this case oil and vinegar, which when stirred, said mixture will separate.

3 0
3 years ago
A cylinder with a piston is full of gas which of the following actions would result in an increase in the pressure of the gas be
SpyIntel [72]
The answer is B. Decreasing the cylinder volume decreases the amount of space the gas has to occupy there for increasing pressure
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3 years ago
What is the value of the equilibrium constant at 25 oC for the reaction between the pair: Br2(l) and I-(aq) Use the reduction po
Vikki [24]

Answer:

1.58×10E18

Explanation:

Since we have the reduction potentials we could make decisions regarding which one will be the anode or cathode. Evidently, bromine having the more positive reduction potential will be the cathode while the iodine will be the anode.

E°cell= 1.07- 0.53= 0.54 V

E°cell= 0.0592/n logK

0.54 = 0.0592/2 logK

logK= 0.54/0.0296

logK= 18.2

K= Antilog (18.2)

K= 1.58×10^18

3 0
3 years ago
What evidence did Mendeleev use to decide that the alkali metals should be in the same group?
Bezzdna [24]

Answer:

they all reacted the same

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3 years ago
What is the name of the compound made from Sn 4+ and PO4 3-?
givi [52]

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Sn₃(PO₄)₄ - tin(IV) phosphate.

Explanation:

Hope it helps! :)

8 0
3 years ago
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