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Archy [21]
3 years ago
13

Mantle material rises in convection currents because heated materials becomes more dense

Chemistry
1 answer:
sergey [27]3 years ago
3 0
Heated mater rises and cold mater sinks
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The solubility of k2cr2o7 in water is 125 g/l at 20 °c. a solution is prepared at 20 °c that contains 6.0 grams of k2cr2o7 in 50
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The solubility is the guide to the maximum amount of solute that can be dissolved in a certain amount of solvent at a certain temperature to make a saturated solution. Any amount less than this would result to unsaturated, while any amount more would result to saturated.

6 g/(50 mL * 1 L/1000 mL) = 120 g/L

Since it is less than the solubility of 125 g/L, then <em>this solution is unsaturated</em>.
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wait..if you asking about the country it's Brazil✌️

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