What do you think a force diagram might look like for a hit that causes a concussion? Draw a diagram. Consider only the person’s head in your diagram. Be sure to draw arrows to the proper scale. In a text box, state whether your diagram shows balanced or unbalanced forces.

What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 10.2?

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together