The answer is C because you don’t have to worry about the number in front of the decimal unless it is something greater than zero. A- Doesn’t have there sig figs. B- The zero after the 5 doesn’t change it. D- The three at the end doesn’t matter because it does not round it up.
Answer:
i only know 6 whitch is the +ion
Explanation:
Answer:the answer is moles
Explanation: joules are measurements of energy, and moles Joules
The answer is B because isotopes have the same number of protons and neutrons.
Answer:
C
Explanation:
I'm assuming that you meant to type neutral charge.
Since electrons are negative and protons are positive, having a balanced number of both of these would cause an atom to have a neutral charge.
