Answer:
Ionic Compound
Not the answer:
Metallic compounds are just made of one or more than one metal.
Ex. Chloride, Sodium Chloride
Covalent compounds only form between nonmetallic elements because these elements have the same or similar electronegativity values.
Ex. Water, Hydrogen
Answer:
divide by molar mass (12.01 g)
Explanation:
To find the number of moles of the carbon, divide by molar mass (12.01 g).
The number of moles of a substance is given as;
Number of moles = 
To solve this problem;
since mass of carbon = 45g
Number of moles =
= 3.75moles
Answer:
Clearly volume will INCREASE almost sevenfold, as we would expect if we reduce the pressure. Marilia E.K. The final volume of this gas will be 1.7L.