Answer:
last option that is
F2(g) + Ca(s) —> CaF2 (s)
Explanation:
it had to be either 2nd or 4th bc the product to be obtained was Calcium Fluoride with molecular formula CaF2.
2nd couldn't be the answer as CaF2 isn't formed in liquid state but in solid state as given in option 4.
- (l)/ (s)/ (g) represents the state of the substance ,I.e, if the substance is in liquid solid or gaseous state respectively.
Answer:
A base forms hydroxide ions in water.
Hope this helps
The answer is C
hope this helpe u out!!!!!!!
Factor that can be controlled changed or measured in an experiment.