Asubstance that conducts electricity, is malleable, ductile, and has luster would be classified as a a) compound b) element c) metal d) nonmetal

C. Metal

You can think of aluminum cans foils
They are both malleable (to morph easily)
They both are ductile (to flatten out)
They both have luster (shiny)
And they both conduct electricity.

Option (C) is the correct answer.

Explanation:

The properties of a metal are as follows.

Metals are malleable that is they can be drawn into thin sheets.They have luster.They are good conductor of electricity.They are ductile that is metals can be drawn into wires.

Thus, we can conclude that a substance that conducts electricity, is malleable, ductile, and has luster would be classified as a metal.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;