During a physical change A. the properties of matter change.
B. the properties of matter are not affected.
C. the color of matter changes.
D. none of the above

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

Why is silver chloride is an ionic compound

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm