Now if your lab partner determined that there were 5.293 x 1020 atoms of mn in an unknown sample of kmno4, how many milligrams would the unknown sample weigh?

What forms when chemical reactions combine pollution with sunlight?

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

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?