Answer:
CaCl₂(s) ⟶ Ca²⁺(aq) + 2Cl⁻(aq)
Explanation:
When the calcium chloride dissolves. the calcium and chloride ions leave the surface of the solid and go into solution as hydrated ions.
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The correct answer is a suspension.
A suspension is a mixture containing relatively large particles that settle fast
A homogenous mixture is a mixture where everything looks the same throughout and is all in the same phases
A colloid is a heterogenous mixture where the particles are small enough to stay suspended (usually talking about gaseous solutions)
And a solution is a homogenous mixture where the particles are too small to even reflect light
Sodium (Na) has a +1 charge and Iodine ( I ) has a -1 charge. To create a molecule of sodium iodide the charges will need to balance.
Because the charges on anion and cation are the same; the molecular formula will be NaI
Answer:
Option-D is the correct answer.
Explanation:
Hydrocarbons are classified as;
a) Saturated Hydrocarbons:
Those hydrocarbons in which all carbon atoms are bonded to each other through a single covalent bonds are known as Saturated Hydrocarbons.
Example:
Alkanes with a general formula CnH₂n+₂ belongs to saturated hydrocarbons. The Hydrogen Deficiency Index of Alkanes is zero, means it does not contain any double or triple bond.
i) H₃C-CH₃ Ethane
ii) H₃C-CH₂-CH₃ Propane
iii) H₃C-CH₂-CH₂-CH₃ Butane
b) Unsaturated Hydrocarbons:
Those hydrocarbons in which a double bond (Alkenes) or triple bond (Alkynes) is formed between two carbon atoms are called as unsaturated Hydrocarbons.
Example:
Alkene with a general formula CnH₂n belongs to unsaturated hydrocarbons. The minimum Hydrogen Deficiency Index of Alkenes is one, means it contain minimum one double bond.
i) H₂C=CH₂ Ethene
ii) H₂C=CH-CH₃ Propene
iii) H₃C-CH=CH-CH₃ 2-Butene
Alkyne with a general formula CnH₂n-₂ belongs to unsaturated hydrocarbons. The minimum Hydrogen Deficiency Index of Alkynes is two, means it contain minimum one triple bond.
i) HC≡CH Ethyne
ii) HC≡C-CH₃ Propyne
iii) H₃C-C≡C-CH₃ 2-Butyne
