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Ivahew [28]
3 years ago
6

Answer the 4 questions pls

Chemistry
2 answers:
Vedmedyk [2.9K]3 years ago
7 0
A b A or just the person above me said
laiz [17]3 years ago
4 0
A and c have equal densities
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HELPP!<br> how many grams are in 1.50 x 10(24) atoms of copper?
svlad2 [7]

Answer:

2266g

Explanation:

mass = no.of molecules /6.o23*1o(23) * molar mass

molar mass of co2= 44g /mol

1.5 .10^25/6.023 .10^23 =51.5 moles of co2

51.5 .44g/mol =2266 g

4 0
3 years ago
If an isotope of oxygen has 8 protons, 10 neutrons, and 8 electrons, its mass number is_______.
melamori03 [73]

Answer:

mass number = 18

Explanation:

The mass number is the total amount of protons and neutrons in an atom. Therefore, if there are 8 protons and 10 neutrons, the mass number is 18 (8 + 10 = 18).

4 0
2 years ago
When do electrons release photons​
Inessa05 [86]

Answer:

Later when they are older

Explanation:

brainliest/

3 0
3 years ago
Help please please help please
Anni [7]

Answer:

I don't fully understand what this is about...

Explanation:

sorry :(

5 0
3 years ago
Read 2 more answers
Why should you always condition a buret before running a titration?.
Alex Ar [27]

Answer:

Conditioning two or three times will insure that the concentration of titrant is not changed by a stray drop of water.

Explanation:

"Check the tip of the buret for an air bubble. To remove an air bubble, whack the side of the buret tip while solution is flowing".

5 0
2 years ago
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