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3 years ago

Substances containing which type of bond have the highest melting point?

1 answer:

3 0

Because of the nature of covalent and ionic bonds. covalent bonds have a lower melting point then ionic bonds.

the answer is A ionic.

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4 years ago

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How has dissections and autopsy help scientists?

wel

Answer:it helps them explore the body more in visual and in depth of what organs and bones look like

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3 years ago

Which one of the following compounds will NOT be soluble in water? Which one of the following compounds will NOT be soluble in w

Nadusha1986 [10]

Answer:

$BaSO_{4}$ will be not soluble in water

Explanation:

LiOH is a strong base. Hence it gets completely dissociated in aqueous solution.

$NaNO_{3}$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$MgCl_{2}$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$K_{2}S$ is a strong electrolyte. Hence it gets completely dissociated in aqueous solution.

$BaSO_{4}$ is a sparingly soluble salt. Hence it is not dissociated and hence dissolved in water. This is due to the fact that both $Ba^{2+}$ and $SO_{4}^{2-}$ ions are similar in size. Hence crystal structure of $BaSO_{4}$ is quite stable. Hence $BaSO_{4}$ is reluctant to undergo any dissociation in aqueous solution.

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3 years ago

Someone help me here

alexira [117]

Atom : B

Cation : C

Anion : A

<h3>Further explanation</h3>

Given

Pictures for atom, anion, and cation

Required

Classification

Solution

Represent atom : Picture B

Number of protons = number of electrons = 6 = neutral atom

Represent cation : Picture C

Number of protons > number of electrons = 6>5 : charge +1(positive charge)

Represent anionn : Picture A

Number of protons < number of electrons = 5<6 : charge -19negative charge)

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3 years ago

What does acetic anhydride form when it reacts with water?

Stels [109]

What does acetic anhydride form when it reacts with water?

When acetic anhydride reacts with water it forms acetic acid. In other words, The hydrolysis of acetic anhydride in presence of water forms acetic acid.

*Note that:- It is an exothermic reaction.

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3 years ago

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