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Vladimir79 [104]
3 years ago
8

Which anion will form a precipitate with Ca2+

Chemistry
2 answers:
ioda3 years ago
6 0

Answer : Precipitation reactions occur when particular species of cations and anions in an aqueous solution combines to form an insoluble ionic solid which can be called as precipitate.


Here, the anions that will mostly form precipitate with Ca^{+2} are OH anions, Cl ions, Br ions, SO_{4} ions, C_{2} H_{3} O{2} ions.


Calcium has valency of 2 electrons in its valence shell. So, any anion that can satisfy the valency of calcium can form a compound with calcium.

Anika [276]3 years ago
4 0
One example of an anion that will form a precipitate with Ca <em>2+</em> is CO3 <em>2-
</em>The substance formed would be CaCO3 of calcium carbonate.<em>
</em>
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Solid cadmium sulfide reacts with an aqueous solution of sulfuric acid . Express your answer as a balanced chemical equation. Id
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Explanation:

When solid cadmium sulfide reacts with an aqueous solution of sulfuric acid then the reaction will be as follows.

          CdS(s) + H_{2}SO_{4}(aq) \rightarrow CdSO_{4}(aq) + H_{2}S(g)

Hence, ionic equation for this reaction is as follows.

      CdS(s) + 2H^{+}(aq) + SO^{2-}_{4}(aq) \rightarrow Cd^{2+}(aq) + SO^{2-}_{4}(aq) + H_{2}S(g)

Therefore, net ionic equation for this reaction is as follows.

      CdS(s) + 2H^{+}(aq) \rightarrow Cd^{2+}(aq) + H_{2}S(g)

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3 years ago
Which alkane may be obtained by the reduction of 2-bromo propane
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To reduce a haloalkane, it has to be eliminated first. This is because 2 bromopropanes are a saturated compound that can not be reduced by a saturated compound. Dehydrohalogenation of the haloalkanes into the form of propene and hydrogen bromide can lead to the elimination. The propene is then reduced to propane.

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3 years ago
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Write the balanced chemical equation for the combination (synthesis) reaction of magnesium with oxygen gas. phases are optional.
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The answer to this question would be:2 Mg<span> + O</span>2<span> = 2 MgO

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For a species with a diploid number of 26, indicate how many chromosomes will be present in the somatic nuclei of individuals th
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Answer:

Haploid - 13

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Tetraploid - 52

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Explanation:

A haploid organism has half the chromosome number of a diploid version, hence 26/2 = 13

A triploid organism has 3 sets of a haploid chromosomes, hence 13 x 3 = 39

A tetraploid is double of a diploid, 26 x 2 = 52

Trisomic organisms have one extra chromosome in addition to the normal diploid. Hence 26 + 1 = 27

Monosomic organism has one less chromosome than the normal diploid. Hence 26 - 1 = 25

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Answer:

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Memory impairment from marijuana use occurs because THC alters how the hippocampus, a brain area responsible for memory formation, processes information.

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