How much heat, in kJ, is required to raise the temperature of 50 g of water by 5.53°C? (Round to the nearest 10 kJ, and enter only numbers in your answer.) The specific heat capacity of water is 4.186 J/g·°C.

Predict the products butane (c4h10) + oxygen —>

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride