The students came to the conclusion that heart rates raise by 10 to 20 beats per minute after walking and 20 to 40 beats per minute after running. first, identify the independent (manipulating) and dependent ( repsonding) variables. then, explain wheter or not the data table supports this conclusion.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Stage in which a star’s outer layers have started to cool and grow outward?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: