Which molecule can diffuse from the digestive tract into the human blodstream without first being digested

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

In saturated organic compounds, all the bonds between carbon atoms are called?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?