kaitlyn1511
kaitlyn1511 kaitlyn1511
  • 21-03-2016
  • Chemistry
contestada

Can you help answer #10 please?

Can you help answer 10 please class=

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nobrains
nobrains nobrains
  • 21-03-2016
Just like in algebra, coefficients are before the variable, in chemistry it's before the element name/letters. So in 2Al, 2 is the coefficient. 

Subscripts are the small numbers (sub) that you see after the element letters. In H2, the subscript is 2.
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