When balancing a chemical equation which of the following is true?
a) subscripts cannot be changed.
b)coefficients cannot be changed.
c)the number of atoms can be changed.
d)subscripts and coefficients can both be changed.

How do dying stars contribute to the formation of planets

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?