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.
A reaction or process which entails only partial burning of a fuel. This may be due to a lack of oxygen or low temperature, preventing the complete chemical reaction. Carbon monoxide is produced as a byproduct from incomplete combustion of carbon.
2 is right am 70 percent sure
Length; volume of a rectangular prism is lwh. If you already know the width and height you still need to find the length.
Hope this will be hopeful