Answer:
C. 17 grams.
Explanation:
∵ mass % = [mass of solute/mass of solution] x 100.
mass of solute (NaCl) = ??? g & mass of solution = 140.0 g.
<em>∴ mass of NaCl = (mass %)(mass of solution)/100 </em>= (12.0)(140.0)/100 = <em>16.80 g ≅ 17.0 g.</em>
Rocks. Because the air water and soil are part of carbon.
<span>Using proportions,
if x is the unknown volume we have:
1.84 / 1 = 42.5 / x </span>
<span>
Multiply both sides above by x:
1.84*x / 1 = 42.5
1.84*x = 42.5
Divide both sides by 1.84:
x = 42.5 / 1.84</span>
<span>X = 23.10 mL</span>
Answer:
lead (II) chlorate
Explanation:
precipitate means not soluble in water
potassium chlorate is not very soluble in water, it precipitates and may be collected by filtration
lead(II) chloride can be made as a white precipitate by adding a solution containing chloride ions to lead(II) nitrate solution
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