When determining the melting point of the alum, it is necessary to keep the thermometer next to the capillary tube to ensure that the temperature reading is accurate. True or false?

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

answer carbon and three oxygen atoms;

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.