Which change will produce a new substance? Heating water until freezes
Cooling water until freezes
Burning a piece of wood
Dissolving sugar in water

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

What does the mass of 0.7891 mol of ferric oxide (fe2o3)