Answer:
No, this is false because we know about the law that says if you add two things together you are adding the masses together, 2 drops of vinegar and 2 drops of ammonia would equal four drops of solution not two
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Explanation:
Answer: 3 significant figures
Explanation: because in scientific notation only the before and after decimal number are considered but in standard form all numbers including exponents are all significant figures
Answer:
9 protons, 10 neutrons, and 9 electrons.
Explanation:
The particles of the nucleus of an atom of Fluorine-19 is
9 protons, 10 neutrons, and 9 electrons.
Answer:
B.
Explanation:
The up and down movement of gases and liquids caused by heat transfer is convection.
