when hydrogen and oxygen combine to synthesize water, releasing 571.7kJ of energy. How much energy is released when 10g of hydrogen is reacted with an excess of oxygen?

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

What is the solubility of substance?

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