All you need to do the cross the charges and put it as suffixes.
D+2 + E-1 ----> DE2
answer is C
Answer:
O B. Convert the 10 g of NaCl to moles of NaCl.
Explanation:
The formula for finding the molality is m=moles of solute/kg of solvent. The solute for this question is NaCl and the solvent is water.
(10g NaCl)(1 mol NaCl/58.44g NaCl)=0.1711 mol NaCl
58.44 is the molar mass of NaCl
m=0.1711 mol NaCl/2 kg H2O
m=0.085557837
Answer:
Hydrogen chloride react with ammonium hydroxide
HCl + NH3•H2O → NH4Cl + H2O
Explanation:
Mole represents the a huge Avogadro number (way larger than atom), so we can eliminate option A and D.
And we know that Mercury is a solid , which mean it has greater mass than chlorine
So the answer is : B. 1.0 mol mercury (Hg) Atom
D. Viral disease
Because it’s a virus that spreads around to other people and need a vaccine to combat it
