Answer:
take 75 gm or it will be overdose
Answer:
1
Explanation:
4 HBr + O2 → 2H 20 + 2Br 2
...............
Answer:
2 atoms of nitrogen are present.
While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall
2
−
charge.
We represent this selenide ion as
S
e
2
−
. Do I win 5 pounds?
Z= 34, therefore the atom is selenium