Question

Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formula equation for this reaction?

Upper F subscript 2 (l) plus upper N a (s) right arrow upper N a upper F subscript 2 (s).
Upper F subscript 2 (g) plus upper C a (s) right arrow upper C a upper F subscript 2 (l).
Upper F subscript 2 (g) plus upper N a (s) right arrow with delta above upper N a upper F subscript 2 (l)
Upper F subscript 2 (g) plus upper C a (s) right arrow with delta above upper C a upper F subscript 2 (s).

Answer 1

Answer:D

i took the test (:

Explanation:

Answer 2

D

Explanation:

The Delta symbol represents heat being applied in order to produce.