Determine the limiting reactant if 25 grams of zn and 30 grams of mno2 are used in the following balanced reaction: zn(s) + 2mno2(s) + h2o(l) imported asset zn(oh)2(s) + mn2o3(s).

mno2 is the limiting reactant

mn2o3 is the limiting reactant

zn is the limiting reactant

zn and mno2 are equally limiting reactants

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

What does the process of natural selection involve

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.