How many atoms for each element in this compound: Cu3(BO3)2
Cu =
B =
O=
How many TOTAL atoms? =
V

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6