Don't all halogens have 8 valence electrons? They don't need to gain or lose any because they are already stable.
<span>For the answer to the question above,
If 3g of element combines with 8g of D to form CD it means
1 mole of C = 3g
1 mole of D = 8g
hence it forms CD.
So to form CD2 you need 16g of element D
I hope my answer helped you</span>
<span>Spontaneous reactions need to be discovered first. Also, if reagents are transferred to the other cups used in the tests, it could contaminate them, leading to different colors being seen and the test results being invalid. Doing the reagent tests last ensure that the cups and reagents are only used on the substances that they are intended to.</span>
Answer:
The molecular weight of sodium oxalate is 133.998 g/mol
Explanation:Molecular formula of sodium oxalate is Na2C2O4 or C2Na2O4
