53.3% O. How many hydrogen atoms are in the simplest (empirical) formula of this compound? 1. 2 atoms 2. 5 atoms 3. 1 atom 4. 4 atoms 5. 3 atoms. how many moles of oxygen is this? answer in units of mol

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature

How much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol

Which of the following is not a result when a change to an equilibrium system is applied? (2 points) increasing the rate of the forward reaction will cause a shift to the left. increasing the rate of the reverse reaction will cause a shift to the left. decreasing the rate of the forward reaction will cause a shift to the left. decreasing the rate of the reverse reaction will cause a shift to the right.