How do I work out the rate?

Match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) amount of product predicted to be produced by the given reactants theoretical yield c) reactant that can produce more of the product

1.how did scientists discover that all living things are made of cells? 2. how did pasteur’s experiment with the flasks disprove the idea that living things could just appear or come from nonliving things like water and air? 3. why are nutrients needed for living things? describe the difference between living and nonliving things

Acyclists rides at an average speed of 27 miles per hour. if she wants to ride at 181km, how long (in hours) must she ride?