Which sentence is punctuated correctly

You need to start an experiment and the instructions are to mix 2 g of sodium bicarbonate with 50 ml of distilled water and then mix the solution. describe what lab apparatus you would use and what safety precautions you must observe when completing this experiment.

Which theme is best supported by the descriptive detail in this passage from my antonia

In 150 words, explain what northup (in twelve years a slave) could have done to prevent being kidnapped by hamilton and brown.