If 250 g of calcium chlorate decomposes into calcium chloride and oxygen, what mass of oxygen would be produced?

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Which one of the following research methods can show cause and effect

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.