2. Create a timeline of the history of the microscope and the cell theory. Explain what each of the scientists contributed and put them in order from early to recent dates. Include the dates and summarize their contributions. 3. Zacharias Jensen 4. Antonie Van Leeuwenhoek 5. Robert Hooke 6. Robert Brown 7. Schleiden 8. Schwann 9. Virchow 10. Remak 11. Walter Flemming 12. Ernst Rushka 13. Paul Kirkpatrick 14. Watson & Crick 15. Any other important contributors?​

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -

The answer to your q the total mass is 73

Answer/when the cell uses energy;