Need Help ASAP!! The type of bond in Calcium fluoride, CaF2, is a(n):

A) covalent bond
B) ionic bond
C) hydrogen bond
D) metallic bond

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

Can someone me with questions 15 to 17 plz.

When a septic tank backs up a goes in to clean it out