the mass number of fluorine (F) is 19
C. 19
The name of the positively charged nonmetal ion is changed to end in –ide, is not true of binary compounds.
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Answer:
C
Explanation:
Neon is a noble gas, which is monoatomic.
Answer: Solar winds have an influence all the way to about 160 AU from the Sun. About how many kilometers is that?
24,000,000,000 km
48,000,000,000 km
240,000,000,000 km
480,000,000,000 km
Explanation:
Answer: Option (4) is the correct answer.
Explanation:
When sulfuric acid reacts with calcium hydroxide then it results in the formation of calcium sulfate and water.
The chemical reaction for the same will be as follows.
Thus, we can conclude that 
salt is produced when sulfuric acid and calcium hydroxide react completely.
