A solution was made in a 200.00 mL volumetric flask consisting of 18.00 mL of 2.125 M HCl and 0.4104 grams of CaCO3, followed by adding enough water to bring the final volume up to the mark on the flask. A 15.00 mL sample of the solution was titrated with 0.1111 M NaOH to the equivalence point. How many mL of NaOH are used

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.