Q3.) acidic
q4.)that the solution is acidic
q5.)that the solution is alkaline
Answer:
B. People live longer than they used to
Explanation:
None of the other answers are correct.
Answer:
movement in tectonic plates. or volcanic eruptions.
Explanation:
Atoms can be the source of both nuclear and chemical energy. Nuclear energy involves the atom's nucleus; chemical energy involves the atom's electrons—subatomic particles that surround the nucleus.
Carbon dioxide is a compound. Oxygen is an element. A compound is 2 or more elements chemically combined. An element is a pure substance. A mixture is combining two or more different compounds/elements.