This is a science subject. 1) You can use what to change liquid into gas?

2) The heating and cooling of molecules will make what change their state?

3) Changing a solid to a liquid to a gas is Changing the what of matter?

Please help me, please, please,.​

1)Vaporization of a sample of liquid is a phase transition from the liquid phase to the gas phase. There are two types of vaporization: evaporation and boiling. Evaporation occurs at temperatures below the boiling point, and occurs on the liquid's surface.

2)As a result, state of matter changes from solid to liquid and from liquid to gas. Whereas if there occurs a decrease in temperature then it means kinetic energy of molecules will decrease. ... Thus, we can conclude that the heating and cooling of molecules will make kinetic energy change their state of matter.

3)We can change a solid into a liquid or gas by changing its temperature. This is known as changing its state. Water is a liquid at room temperature, but becomes a solid (called ice) if it is cooled down. The same water turns into a gas (called water vapor) if it is heated up.

explanation:

i did this but i forgot how to do it

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.