How do carbon-12 and carbon-13 differ?
select all that apply.

they have different amounts of neutrons.
they have different amounts of electrons.
they have different mass numbers.
they have different atomic charges.

The ph of your mouth is very similar to that of stomach. true or false?

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.