You mix baking soda and vinegar in an open container and the mass after the reaction is less than the mass at the start. Which of the following is the best
explanation for this?
Some of the mass was lost as a gas
Some of the mass was destroyed in the reaction
The reaction caused the particles to shrink and become lighter

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

The total amount of energy contained in an object