Unreasonable ResultsA proton has a mass of 1.67×10?27 kg .

Chemistry: A Molecular Approach 3
Name the compound HNO2(aq). a) hydrogen nitrogen dioxide b) hydrogen nitrate c) nitric acid d) nitrous acid

Chemistry 11
A 0.054 M \(\mathrm{HNO_2}\) solution is titrated with a KOH solution. What is \([\mathrm H^+]\) at half way to the equivalence point?

Myers' Psychology for AP 2
Frequency theory relates to which element of the hearing process? a. Rate at which the basilar membrane vibrates b. Number of fibers in the auditory nerve c. Point at which the basilar membrane exhibits the most vibration d. Decibel level of a sound e. Number of hair cells in each coch

Chemistry 12
The following Lewis structures for (a) HCN, (b) C2H2, (c) SnO2, (d) BF3, (e) HOF, (f) HCOF, and (g) NF3 are incorrect. Explain what is wrong with each one and give a correct structure for the molecule. (Relative positions of atoms are shown correctly.) (a) O Q HOCPN O (b) HPCPCPH (c) O OQOSnOO OQ (d)

Biology 8
Which ofthe following animals is incorrectly paired with its feeding mechanism? a. lion-substrate feeder b. baleen whale-suspension feeder c. aphid-tluid feeder d. clam-suspension feeder e. snake-bulk feeder

Anatomy & Physiology 1
The characteristic that gives an element its distinctive properties is its number of ________. a. protons b. neutrons c. electrons d. atoms

Campbell Biology: Concepts & Connections 7
Prokaryotes reproduce by binary fission. Prokaryotic cells reproduce asexually by cell division. As the cell replicates its single chromosome, the copies move apart; the growing membrane then divides the cell.

Chemistry: A Molecular Approach 3
Explain why CO2 and CCl4 are both nonpolar even though they contain polar bonds.