Answer:
sodium
Explanation:
this is because sodium is neutral ....hence the pH formed will be 7
I heard Magnesium and Oxygen were going out.
So I was like, "OMg!"
Answer: norfenefrine
Explanation:
Depression in freezing point is given by:

= Depression in freezing point
i= vant hoff factor = 1 (for non electrolyte)
= freezing point constant = 
m= molality

Weight of solvent (ethanol)= 
Molar mass of unknown non electrolyte = M g/mol
Mass of unknown non electrolyte added = 82 mg = 0.082 g (1g=1000mg)


The molecular mass of norfenefrine
is near to 154 and thus the identity of the white powder is norfenefrine .
<span>Carbohydrates have 4 kcal per gram of carbohydrates. (Protein is also 4 kcal/gram, while fat is 9 kcal/gram).
Take the total kcal and divide by 4 kcal/gram: 72 kcal/(4 kcal/gram) = 18 grams carbohydrates.</span>
For [Ca +2 ]:
0.0010 mol/l · 0.05 l =

For [ SO4 -2 ] :
0.01 mol/l · 0.05 l =

Cumulative volume:
50 ml + 50 ml = 10 ml = 0.1 l
[Ca +2 ] =

[SO4 - 2] =

Qc for CaSO4:
Qc =

This is less than Ksp of CaSO4.
Answer:
C ) No precipitation will occur.