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TLS Online TPP Program

#Question id: 346

The partial negative charge in a molecule of water occurs because ________.

#XL - Q Biochemistry

  1. the oxygen atom donates an electron to each of the hydrogen atoms

  2. the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus

  3. the oxygen atom has two pairs of electrons in its valence shell that are not neutralized by hydrogen atoms

  4. one of the hydrogen atoms donates an electron to the oxygen atom

More Questions
TLS Online TPP Program

#Question id: 370

#XL - S Microbiology

Which of the following statements is true about buffer solutions?
TLS Online TPP Program

#Question id: 370

#XL - Q Biochemistry

Which of the following statements is true about buffer solutions?
TLS Online TPP Program

#Question id: 371

#XL - S Microbiology

How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)
TLS Online TPP Program

#Question id: 371

#XL - Q Biochemistry

How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)
TLS Online TPP Program

#Question id: 372

#XL - S Microbiology

Carbon dioxide in the atmosphere dissolves with the raindrops. The pH of raindrops is ________.
TLS Online TPP Program

#Question id: 372

#XL - Q Biochemistry

Carbon dioxide in the atmosphere dissolves with the raindrops. The pH of raindrops is ________.