Chemistry, 29.06.2019 19:00 Ryan02717

Calcium forms ions with a charge of +2. iodine forms ions with a charge of -1. which of the following would represent an ionic compound composed of calcium and iodide ions? options: cai2 < lower 2cai ca2i < lower2ca2i 2cai cai2

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Answer from: Olaf2018

CaI2

Here 2 will be small or lower like depicted in figure

Explanation:

CaI2 or Calcium Iodide is the ionic compound formed when calcium and Iodine react with each other. If we talk about physical properties it is a salt that is colorless and highly soluble in water. It is used a s a food for cats and other properties are similar to the salts of related type like calcium chloride.

It also takes part in many single displacement reaction, such as below mentioned where sodium displaces calcium with itself:

CaI2 + 2 Na → 2 NaI + Ca

Hope it helps!

Calcium forms ions with a charge of +2. iodine forms ions with a charge of -1. which of the followin

Answer from: Quest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

Answer from: Quest

Answer "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

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Calcium forms ions with a charge of +2. iodine forms ions with a charge of -1. which of the followin...

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