Indicate which of the numbers in the following equations are coefficients and which are subscripts
3h2so4 + 2al > al2 (so4)3 + 3h2

Ineed to find the answer of this question because i dont understand it

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?