A. 1/2
Explanation- There is a 5/10 chance of choosing on of the numbers which simplifies to 1/2
In balancing reactions, the number of atoms on each side should be of equal number. It is the most important rule in reactions. Also, we should know the correct substances involved in the reaction. We do as follows:
2K + MgBr2 = 2KBr + Mg
Covalent example ch4 where carbon is covalently bonded with all 4 hydrogens
Answer:
V=0.3×22.4=6.72 liters hope this helps
