Chlorophyll pigments are separated using paper. what is the stationary phase in this experiment

65ml a 6M solution of HCl are needed to neutralize 82ml of NaOH of an unknown molarity. a. Write out the reaction that takes place when HCl and NaOH are reacted. b. Identify the molarity of the NaOH

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 14.4 g of carbon were burned in the presence of 56.5 g of oxygen, 18.1 g of oxygen remained unreacted. What mass of carbon dioxide was produced?

Megan prepares a pitcher of lemonade by adding a quarter cup of granular sugar to the mixture. Which action should she take so the sugar dissolves in the lemonade faster? A. Increase the amount of sugar. B. Add a small amount of powdered sugar. C.

What would happen to the pressure if the volume were reduced to 0.5 l and the temperature increased to 260 ∘c?

What compound is O2H?

The ionization energy of an element is a. a measure of its mass b. the energy required to remove an electron from the element in its gaseous state c. the energy released by the element in forming an ionic bond d.

If 100.0 ml of HCI stock solution is used to make 500.0-ml of a 0.675 M HCI dilution, what is the molarity of the stock solution?

Consider the reaction 4FeS2 + 11O2 → 2Fe2O3 + 8SO2. If 8 moles of FeS2 react with 15 moles of O2, what is the limiting reactant? FeS2 Fe2O3 O2 SO2

The small shock you feel when you rub your shoes on carpet and touch something metal is caused by___. A. conduction B. insulator C. induction D. current

Is the temperature of rain a physical property?