Elements which appear in the same column have similar properties (periodicity). For example, all of the elements in group XVII (17), the Halogens, all react in a similar fashion; they all like to attract one additional electron and form a -1 anion.
The longest chain of carbons will contain the highest number of carbon atoms.
Explanation:
question 3 - the longest chain have 7 carbon atoms
question 4 - the longest chain have 8 carbon atoms
question 1 - the longest chain have 5 carbon atoms
You may find in the attached picture the longest chain colored in blue for each of the compounds.
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longest carbon chain
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1. As you increase speed is there an increase or decrease in Kinetic Energy?

2. As you increase mass is there an increase or decrease in Kinetic Energy?
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3. As you decrease speed is there an increase or decrease in Kinetic Energy?

4. As you decrease mass is there an increase or decrease in Kinetic Energy?

Answer:
D
Explanation:
THERE ARE 3 HYDROGEN ATOMS AND 1 NITROGEN SUPPORTING THE FORMULA OF AMMONIA NH3 AND TOTAL ATOMS IS ALSO 4.