Tutor profile: Christine C.
C + O2 --> CO2. 12g of carbon was burnt to produce 33g of CO2. What was the percentage yield?
Percentage yield: 75%
What is the greatest common factor of 6yx^2, 14xy^2, 42xy, 2x^2y^2?
GCF = 2xy
If 12x + 4y = 120 and 12x-9y=159, what are the values of x and y?
needs and Christine will reply soon.