What volume of co2 gas is produced when 20g of 20%pure CaCo3 is completely heated? ​

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

At the current rate, a graph of carbon dioxide produced by fossil fuels over time would slope upward slope downward be horizontal be vertical

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?