- Does silica sand absorb moisture?

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How many dots does an electron-dot diagram of a sulfur atom have? 4Fe + 3O2= 2Fe2O3 if you have 250grams of iron, how much heat is produced by the reaction? (b-c)x^2 + (c-a)x + (a-b) = 0 is a quadratic eqation . b^2 - 4ac =0 ,prove 1/ab + 1/bc = 2/ ac? A solution containing 1.20g of sucrose in 50.0g of solution has a mass percent (m/m) concentration of? Solve for x:
y=r^2-8rx+12x^2
and:
y=rs-4rx-4sx+12x^2?

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