A) BaCl2
b)Li2S
hope this helps...
Answer:
12.044 x 10^23 atoms Na
Explanation:
1 mol Na has 6.022 x 10^23 atoms of Na
2 moles Na have 2 x NA = 2 x 6.022 x10^23 atoms Na
Molar mass
Ca₃(PO₄)₂ = 310 g/mol
1 mole -------------------> 310 g
2.3x10⁻⁴ mole ---------> ?
m = 2.3x10⁻⁴ * 310 / 1
m = 0.0713 g
hope this helps!
I suppose it false, since the oxidation involves the loss or removal of the electrons such forth it does not gain electrons.
Answer:
The reaction in which heat is absorbed from the surrounding is called endothermic reaction.
so
I think it's answer is 2nd option.
