Flourine gas is placed in contact with Calcium metal at high temperatures to produce Calcium Fluoride powder. What is the formula equation for this reaction? F2(g) + Ca(s) ---> CaF2(l) F2(g) + Na(s) ---> NaF2(s) F2(g) + Ca(s) ---> CaF2(s) F2(g) + Na(s) ---> NaF2(l)

if you mean hydrogen and oxygen then water is the product

i don,t know so just answer mine

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.