An ionic compound is formed by what? any two molecules as long as they are different a covalently bonded molecule a metal and a non-metal atom a metal cation and a non-metal anion a metal anion and a non-metal cation

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Will mark brainliest how many electrons can be held in the energy level n = 4?