Question

find the products of the following expressions [ ( a ) ( 3x²y ) × ( -1/5xyz ) ( 3/5y²z) ] [ ( b ) ( 1/8ab ) × ( - 8/11bc ) × ( - 22/3 ca ] [ ( c ) ( 3/8x²y ) × ( - 4/7 y²z ) × ( - 7/11z²x )​

Answer 1

Answer:

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant.