Answer:they get it though food!
Explanation:
Answer:
There are many examples of fossils found on separate continents and nowhere else, suggesting the continents were once joined. If Continental Drift had not occurred, the alternative explanations would be: The species evolved independently on separate continents – contradicting Darwin's theory of evolution.
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The answer would be non-polar covalent.
Bromine is a non-metal, making the bond covalent.
The bond is non-polar because there is no unequal sharing between electrons because both elements in the bond are the same; they have the sane electro negativities.
I₂ is the halogens which is darkest in colour than other.
<h3>What is halogen? </h3>
Halogens are the elements which belongs to group 17. Group 17 elements are known as halogens. They are highly electronegative in nature.
The last electronic configuration is ns2 np5. Since, one electron is less to get stable electronic configuration. Therefore, they accept one electron and get stable electronic configuration.
<h3>Why halogens are dark in colour? </h3>
As we move down the group, the darkness of colour increases. This is due to ionization energy which decreases as we move down the group. This is due to increase in the atomic size and decrease in nuclear form which further make high energy level to absorb lesser light and reflects deepen colour on moving down the group. Due to which they appears dark. Therefore, option A is the correct option.
Thus, we can concluded that I₂ is the halogens which is darkest in colour than other.
learn more about Halogens:
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Answer: 6.77 x 1022 molecules of Cl2.
Explanation: First you need to write the correct BALANCED chemical reaction equation. Then you can determine how many moles of
C
l
2
would be produced from the available moles of Cl in 10.0g of
A
l
C
l
3
. Finally, you will convert this value into the number of molecules using Avogadro's number.
2
A
l
C
l
3
→
2
A
l
+
3
C
l
2
So, TWO moles of
A
l
C
l
3
will produce THREE moles of
C
l
2
.
The molecular weight of
A
l
C
l
3
is 133.33g/mol, so 10.0g is 10.0/133.33 = 0.075mol
With our equation ratio of 3/2 this will produce 0.1125 mol
C
l
2
.
0.1125 * 6.022 x
10
23
molecules/mole = 6.77 x
10
22
molecules of
C
l
2
