How would you classify sugar? 4)

a. pure substance-compound

b. mixture-heterogeneous

c. pure substance-element

d. mixture-homogeneous

e. none of the above?

If by sugar you're referring to glucose, then this is a pure substance-compound. Glucose isn't an element, as it's made of carbon, hydrogen, and oxygen. Because sugar is a molecule (and not a mixture), this leaves A as the only possible answer. Hope this helps!