please help! How much heat is produced when 34 mols of propane (C3H8) is burned? Heat of combustion = -2219 KJ/mol.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

What is the atomic number of an atom that has 6 protons