Answer:
It is true answer. Ozone = O3
NaBr + CaF2 → NaF + CaBr2 What coefficients are needed to balance the chemical equation? A) 1,1,1,1 B) 1,2,1,2 C) 1,2,2,1 D) 2,1
elena-s [515]
D.
2NaBr + CaF2 --> 2NaF + CaBr2 gives you:
2Na 2Na
2Br 2F
1Ca 1Ca
2F 2Br
This is balanced.
The answer is (b) for example lemon juice is an acid and it tastes sour.
Hope this helps :).
Answer:
Hi there!
The correct answer to this question is: electrons enter orbitals of lowest energy first.
