Independent: Gasoline with different amounts of lead
Dependent: Amount of pollution produced
Anti-acids because they contain Alkaline ion that chemically neutralizes stomach acid
Electrons in an atom are found on different electron shells depending on how much energy they possess, and they determine how atoms will interact with each other. The outermost electron shell holds the valance electrons.
Answer:
See explanation
Explanation:
1) Physical change is usually reversible, while chemical change isn't
2) Chemical change involves the change of chemical composition of matter while physical change doesn't
