3 ml of sample J was put into a test tube and 100 mg of resorcinol and 0.5 ml of H2SO,
were added. The mixture was heated gently
on a Bunsen burner. The mixture was then
poured into a beaker containing dilute NaOH
solution.​

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl