How many calories of heat are required to raise the temperature of 320 g of water from 10.0°C to 32.5 degrees * C ? c = 4.184J

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

Tell me the iupac name of the following compounds:

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?