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swat32
4 years ago
13

Please help me with this question after I have help with my questions i will be giving away 50 points to 4 people to keep on the

look out on my page xxx

Chemistry
1 answer:
artcher [175]4 years ago
5 0

it is 8 take away 8x addn 10 more

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What is helium an example of? <br> element <br> compound <br>atomic number <br>subatomic particle​
fgiga [73]

Answer:

atomic number

Explanation:

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A scalpel made of surgical stainless steel is sterilized by heating in a flame and then quenching in 175 g of ethyl alcohol. The
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Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic centimeter for a silver-gold
Sonja [21]

Answer:

The Number of gold atoms are =N_{Au}=1.81718*10^{22}\ atoms/cm^3

Explanation:

The formula we are going to use is:

N_{Au}=\frac{N_A*C_{Au}}{{\frac{C_{Au}A_{Au} }{\rho_{Au}}}+\frac{A_{Au}}{\rho_{Ag}}(100-C_{Au})}

Where:

N_{Au} are number of gold atoms.

N_A is Avogadro Number.

C_{Au} is the amount of gold.

A_{Au} is the atomic weight of gold.

\rho_{Au} is the density of gold.

\rho_{Ag} is the density of silver.

C_{Ag} is the amount of silver.

N_{Au}=\frac{6.023*10^{23}*45\%wt}{\frac{45\%wt*196.97}{19.32}+\frac{196.97}{10.49}(100-45\%wt)}\\ N_{Au}=1.81718*10^{22}\ atoms/cm^3

The Number of gold atoms are =N_{Au}=1.81718*10^{22}\ atoms/cm^3

5 0
4 years ago
Complete the chart. (Remember to enter a "0" if necessary.) Atomic Number: 10 1s: 2s: 2p: 3s: 3p: 4s: 3d: 4p: 5s:
ExtremeBDS [4]
First, we determine how many electrons can each subshell hold:
s can hold 2 electrons
p can hold 6 electrons
d can hold 10 electrons
f can hold 14 electrons

Second, we start distributing the 10 electrons on the orbitals of subshells based on the arrangement shown in the question :
1s will hold 2 electrons
2s will hold 2 electrons
2p will hold 6 electrons
All other orbitals will will hold zero electrons as the 10 were distributed among the first 2

Answer: 1s: 2
              2s: 2
              2p: 6 
<span>              3s: 0
              3p: 0
              4s: 0
              3d: 0
              4p: 0
              5s: 0</span>
5 0
3 years ago
Explain why metals react with non-metals
sukhopar [10]

Answer:

A metal reacts with a non-metal to transfer electrons from the metal to the non-metal to complete their valance shell.

Explanation:

5 0
3 years ago
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