Can someone help and answer this please? Doctors recommend taking vitamin (C) In winter days, How many moles of
Vitamin C (C. H.O.), are there in 528 g of Vitamin C?

a) moles
b) 2.75 moles
c) 3 moles
d)5 moles

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide