How many kilojoules of heat energy is required to heat a 200. g block of ice at -10 °C melt it forming a liquid, and heating up the liquid to 20 °C?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

Identify two types of chemical bonding in the source of dietary potassium

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?