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3 years ago

Is thiamine mononitrate an ionic bond or covalent bond?

Chemistry

2 answers:

timofeeve [1]3 years ago

7 0

It is a covalent bond. Whenever a compound uses such suffixes like mono, di, tri, tetra, and so on, it is a covalent compound- thus having covalent bonds.

faust18 [17]3 years ago

5 0

Answer:

It's a covalent bond

Explanation:

The diference of electronegativity between the two atoms bonding can help you to decide if a bond is either covalent or ionic.

As shown in the figure, the oxygen atoms of the nitrate (left) will interact with the nitrogen atom of the thiamine(right).

The oxygen have an electronegativity of 3.5 (one of the most electronegative elements) and the nitrogen a 3.0

Being the difference: 3.5 - 3.0=0.5

Now, how this helps to decide the type of bond? For covalent bonds it's expected to have a electronegativity diffetence of < 1.5. On the other hand, for ionic bonds this value should be > 1.5

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Which one of the following formulas represents an aldehyde? A. C2H5OH B. CH3COOH C. C6H10O5 D. C2H4O

Ostrovityanka [42]

The chemical formula that represents an aldehyde is C2H4O. The answer is letter C. CH3COOH is a carboxylic acid. C2H5OH is an alcohol and C6H10O5 is an ether. An aldehyde has an alkyl group with a fromyl group attached to it or –CHO.

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3 years ago

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Ethanoic acid, CH3COOH, ionizes to form an ethanoate ion (CH3COO-) in aqueous solution. what else does it form? is it a monoprot

barxatty [35]

Ethanoic acid ionizes in aqueous solutions to form two ions which are $CH_3COO^-$ and $H^+$

<h3>Ionization of ethanoic acid</h3>

Ethanoic acid goes by the chemical formula $CH_3COOH$ .

In aqueous solutions, it ionizes as a monoprotic acid according to the following equation:

$CH_3COOH ---- > CH_3COO^- + H^+$

A monoprotic acid is an acid that is able to donate only a proton. Hence, ethanoic acid is said to be monoprotic because it ionizes in aqueous solutions to produce a single $H^+$

More on ethanoic acid can be found here: brainly.com/question/9991017

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2 years ago

Who was the first scientist to propose that an object could emit only certain amounts of energy?

Liono4ka [1.6K]

Answer:

Option A), Planck.

Explanation:

The first scientist to propose that an object could emit only certain amounts of energy was Max Planck.

Incandescent (very hot) objects emit different color of lights, i.e. different wavelengths, but by 1900 it was believed that the light (energy) was emitted in a continuous way.

Since the wave model did not explain the emission of such specific wavelengths, when the German physicist Max Planck (1858 - 1947) studied the light emitted by incandescent objects, he proposed that the objects (the matter) could gain or lose energy only in small specific amounts or packages of energy called quanta (plural of quantum).

Planck, later, established the mathematical relation between the energy of a quantum of light with the frequency of such the radiation (light emitted). This is the formula:

E = hν.

Where, E is the energy, h is Planck's constant, and ν is the frequency.

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3 years ago

If all the water in 430.0 mL of a 0.45 M NaCI solution evaporates what is the mass of NaCI will remain

skad [1K]

Answer:

11.31 g.

Explanation:

Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.

M = (no. of moles of solute)/(V of the solution (L)).

∴ M = (mass/molar mass)of NaCl/(V of the solution (L)).

∴ mass of NaCl remained after evaporation of water = (M)(V of the solution (L))(molar mass) = (0.45 M)(0.43 L)(58.44 g/mol) = 11.31 g.

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3 years ago

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lina2011 [118]

Answer:

C) Mechanical

Explanation:

its mechanical energy

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3 years ago