When _____ react with metals they produce a wide range of salts, including calcium fluoride, sodium chloride (common table salt), silver bromide and potassium iodide.
A. halogens
B. pathogens
C. oxygen
D. hydrogen
Answer:A
When _____ react with metals they produce a wide range of salts, including calcium fluoride, sodium chloride (common table salt), silver bromide and potassium iodide.
A. halogens B. pathogens C. oxygen D. hydrogen