Chemistry, 07.05.2020 10:57 SDFGHJKdd

Which are Arrhenius base examples? (SELECT ALL THAT APPLY)

Group of answer choices

NaOH

NH3

NH4

KOH

HF

LiOH

Answers: 3

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Answer from: 2021CanadyRaniya

Arrhenius bases: NaOH, KOH and LiOH.

Explanation:

Arrhenius bases are hydroxide ( $OH^{-}$ ) containing molecules which furnish $OH^{-}$ ion in aqueous solution.

So, clearly, NaOH, KOH and LiOH are arrhenius bases as they contain $OH^{-}$ ion as well as furnish $OH^{-}$ ion in aqueous solution.

Hydrolysis in water: $NaOH(S)+H_{2}O(l)\rightarrow Na_{aq.}^{+}+OH_{aq.}^{-}$

$KOH(S)+H_{2}O(l)\rightarrow K_{aq.}^{+}+OH_{aq.}^{-}$

$LiOH(S)+H_{2}O(l)\rightarrow Li_{aq.}^{+}+OH_{aq.}^{-}$

Answer from: Quest

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).

Answer from: Quest

Ch4 and ph3 are both covalent since they are composed both of non-metals. ch4 is non- polar because of london forces and has a geometry of tetrahedral ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf

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Which are Arrhenius base examples? (SELECT ALL THAT APPLY)

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