An engineer wants to be able to condense 10 moles of water vapor every minute. Assuming
the steam is at 100°C, how much energy must be removed every minute? Assume that the
molar heat of vaporization of water is 41 kJ/mol.

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.