Answer:
Sulfur is considered an “impurity” in petroleum. Sulfur in crude oil can corrode metal in the refining process and contribute to air pollution. Petroleum with more than 0.5% sulfur is called “sour,” while petroleum with less than 0.5% sulfur is “sweet.”
Answer:
Protons
Explanation:
Protons are the subatomic particle that determines the identity of an element.
Answer:calcium
Explanation: calcium is an alkaline earth metal,group 2 period 4
Answer:
B
Explanation:
Reactants: H20 and Oz; Product: H202