The ionic charge of oxygen is -2.
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Answer:
Option B
Covalent Bonding
Explanation:
Covalent bonds in C2H5OH are formed between the carbon and hydrogen atoms, where there are shared electron pairs.
This is a weak form of attraction that holds the C2H5OH molecule together, and can easily be broken by a polar solvent such as water.
In order for water to be able to dissolve the C2H5OH molecule, it must break the covalent bonding present in the molecule
Answer with Explanation:
The units used to express the densities of gases are different from those of solids and liquids because the particles in gas are widely separated from each other, unlike the particles in solid and liquid <u><em>which are almost the same</em></u>. The particles in solid are very close together. Considering it melts (if it's an ice), it will turn into a liquid and the change in volume is slightly greater only. However, if the liquid evaporates and transitions into a gas, <u>the volume becomes largely different from its solid and liquid state</u>. This is because the particles are much farther apart and free to move.
Answer:
200g of NaOH
Explanation:
The following data were obtained from the question:
Molar mass of NaOH = 40g/mol
Volume = 500mL
Molarity of NaOH = 10M
Next, we shall determine the number of mole of NaOH present in the solution. This is illustrated below:
Molarity of NaOH = 10M
Volume = 500mL = 500/1000 = 0.5L
Mole of NaOH =...?
Molarity = mole /Volume
10 = mole /0.5
Cross multiply
Mole = 10 x 0.5
Mole of NaOH = 5 moles
Finally, we can convert 5 moles of NaOH to grams. This is illustrated below:
Molar mass of NaOH = 40g/mol
Mole of NaOH = 5 moles
Mass of NaOH =...?
Mole = Mass /Molar Mass
5 = Mass /40
Cross multiply
Mass = 5 x 40
Mass of NaOH = 200g
Therefore, 200g of NaOH is needed to prepare the solution.
The double or triple bond are needed because as they serves as a source of electron density and serves as a nucleophile.
The double bond or triple bond are electron rich entities capable of donating electrons thus act as nucleophile (species that donate electrons) and serve as electron dense region in molecules.
To know more about double or triple bond, click here,
brainly.com/question/21684413
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