What is the molar mass of a substance?
the mass in grams of one mole of a substances
the number of particles in one gram of a substance
the number of moles in one grár of a substance
the mass in grarns of one particle of a substance

The mass in grams of one mole of a substance.

a electronegativity decreases beacuse the size of nucleus is bigger.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl