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bearhunter [10]
3 years ago
11

How is the average amount of motion of atoms and molecules of a substance measured?

Biology
2 answers:
serg [7]3 years ago
6 0
Your answer is B my friend.. Good luck!
blagie [28]3 years ago
4 0
B. Mass
Hope this helps
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Answer:

B. natality + immigration = mortality + emigration

Explanation:

Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination in search of better living conditions, work or social amenities.

Migration selectivity can be defined as the likelihood or tendency that a subset (part) of a group of people are going to move (migrate) out of a particular geographical location or area.

Some of the factors that influence migration selectivity are income level, age, education, gender etc.

Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.

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FASSST!!!physical science!!!!!
jeka94

Answer

#21

2 for NaF

1 For Br2

2 For NaBr

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#22

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Explanation:

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