-do not dissolve in water
-have high melting points
-have low melting points
-dissolve easily in water
-conduct electricity when melted
Answer:
high melting points, dissolve easily in water, conduct electricity when melted.
Explanation:
I'm pretty sure
a. Irreversible
b. Reversible
Answer: b
A change of state is a reversible process.
Answer:
This question is incomplete
Explanation:
This question is incomplete but some general explanation provides a clear answer to what is been asked in the question.
An ionic/electrovalent compound is a compound whose constituent atoms are joined together by ionic bond. Ionic bond is a bond involving the transfer of valence electron(s) from an atom (to form a positively charged cation) to another atom (to form a negatively charged anion). The atom transferring is usually a metal while the atom receiving is usually a non-metal.
For example (as shown in the attachment), in the formation of NaCl salt, the sodium (Na) transfers the single electron (valence) on it's outermost shell to chlorine (Cl) which ordinarily has 7 electrons on it's outermost shell but becomes 8 after receiving the valence electron from sodium. It should also be noted that Na is a metal while Cl is a non-metal.
B. -1,+1,0
C. -2,+3,-1
D. 0,0,0
Three resonance structures contribute to the structure of dinitrogen monoxide.
The resonance structure is invoked when a single structure can not sufficiently explain all the bonding properties of a compound. All the various contributing structures contribute to the final structure of the compound but not all to the same degree.
There are three resonance structures of dinitrogen monoxide. The most stable structure is always the structure that has the formal charges as -1, +1 and zero as shown.
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Answer:
A. 0, +1, -1
Explanation:
You can draw the lewis structure for NNO 3 ways: With two double bonds N=N=O, with a triple bond between the N and O and single bond between the two N's, or a triple bond between the two N's and a single bond between the N and O.
The goal is to have formal charges that are as small as possible, to have no identical formal charges on adjacent atoms, and to have the most negative formal charge on the most electronegative atom. The most stable structure is the one with the triple bond between the two N's because it gives the formal charges 0, 1, and -1 respectively. Unlike the other two structures, the negative formal charge is correctly placed on O, the most electronegative atom.
Answer:
(R) - hexyl acetate
Explanation:
Hello,
This reacción is a nucleophilic substitution SN2.
The configuration (s), means that the groups around the chiral carbon are organized appose to the clock hands movement. But when the reaction happens, these configurations become an (r) configuration, it means the groups around the chiral carbon organize according to the clock hands movement.
Generally, these reactions are related to nucleophilic species, an example is the ion acetate, a conjugated acid which is a weak nucleophilic, for this reason, the transition state is more energetic, it means, less stable than if the reaction occurs with a strong nucleophilic.
Look the image to compare the two configurations of the reactant and product.
The half reaction occurring at anode is:
The substance having highest positive potential will always get reduced and will undergo reduction reaction.
Balanced chemical equation:
The half reaction follows:
Oxidation half reaction: , Reduction potential is 0.53V
Reduction half reaction: ( × 2 ), Oxidation potential is +0.954 V
Oxidation reaction occurs at anode and reduction reaction occurs at cathode.
Hence, the half reaction occurring at anode is :
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Answer: The half reaction occurring at anode is
Explanation:
The substance having highest positive potential will always get reduced and will undergo reduction reaction.
For the given chemical equation:
The half reaction follows:
Oxidation half reaction:
Reduction half reaction: ( × 2 )
Oxidation reaction occurs at anode and reduction reaction occurs at cathode.
Hence, the half reaction occurring at anode is