Earth contains water and oxygen molecules. Each mass is given below. Which has the greater mass? Explain how you know. water equals 2.99 × 10-26 kg and oxygen equals 2.66 × 10-26 kg
Sample Response: The water molecule has the greater mass because 2.99 is greater than 2.66. After comparing the exponents, which are the same, the coefficients are compared to determine the molecule with the greater mass.
