An oxygen atom has the mass of 2.66×10 to the -20/3 G and a glass of water has a mass of 0.050 kg. equation is in the picture

What is avogadro’s number, and why is it useful

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum