The relative abundances of Calcium are in the table below: Isotope
Relative Abundance (96)
Calcium-40
96.9
Calcium-42
0.7
Calcium-44

2.1
A sample of 200 atoms of calcium should contain
atoms of 40 ca
atoms of 42 Ca
atoms of 44ca

How do you lengthen a pattern piece? (family and consumer science, sewing)

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?