Which of the following statements is true about a 25.0 mL sample of 0.10 M CH3COOH (acetic acid)? **PLEASE HELP ASAP** A) It has a pH greater than 7.0 at room temperature.

B) It contains more hydronium ions than 25.0 mL of 0.10 M HCl.

C) The solute does not ionize completely at room temperature.

D) It can be neutralized completely by 10.0 mL of 0.10 M NaOH.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

How do you know when a chemical reaction has occurred