At 740°C, the Keq is 0.0060 for this equation:

CaCO3 (s) CaO (s) + CO2 (g).

What is Q if [CO2] = 0.0050 M?

A] 0.0060

B] 0.012

C] 0.0050

D] 0.010

E] 0.015

How many grams of cuso4 5h20 are needed to prepare a 0.020 m stock solution?

Calculate the wt% c of an alloy that contains 5 g carbon and 100 g fe. express your answer to the nearest 0.1 %. 4.

If an endothermic reaction occurs in solution, the temperature of the solution will A increase or decrease depending on the amount. B remain unchanged C increase D decrease

When the cobalt (II) solution completely dries out, the color of the remaining solid changes to blue color. What would be the chemical formula of ion in the solid responsible for the color change?

Skeleton equation to word equation C4H10 (g) ^ + O2 (g) - > CO2 (g) ^ + H20 (g) ^ = covalent compound

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How much total energy must be absorbed by a 150 g sample of ice at 0.0°C that it melts AND then warms to 25.0°C? (Break it into steps and add them together, phase change and temperature change)

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