Wha is the symbol and ionic charge of a element with 28 proton and 25 electrons?

Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis