Which of the following involves a chemical change boiling water, melting ice, or baking a cake

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave