Annabelle was explaining the carbon cycle to her friend. She said that all the carbon in the carbon dioxide we breathe out came from the same place originally. Is Annabelle
correct? Explain your answer using equations to describe the different processes in the
carbon cycle.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

50 pts plz what is the physical state of matter of baking soda.

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.