A researcher adds 3.25 L of water to a 6.75 L solution of sodium hydroxide. If the final solution has a concentration of 1.25 M after dilution, what was the initial concentration of the solution?

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.

Ineed this awnser fast select the correct answer. this chemical equation represents the burning of methane, but the equation is incomplete. what is the missing coefficient in both the reactants and the products? ch4 + → co2 + a. 0 b. 1c. 2d. 3 e. 4