Which two events are independent?
А
B
с
Total
Х
15
5
30
50
Y
5
8
15
28
Z
10
7
5
22
Total
30
20
50
100
O A and X
O A and Y
O Band X
OB and Y
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Which other elements contain the same number of outer electrons as sodium

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.