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lilavasa [31]
3 years ago
15

7. De acuerdo con esta clasificación, no es un hidrocarburo A. CH3-CO-CH3 B. CH4 C. C6H6 D. CH3-CH2-CH3 8. No se considera como

compuesto orgánico A. Plásticos B. Dióxido de carbono C. Almidón D. Tejido óseo
Chemistry
1 answer:
devlian [24]3 years ago
4 0

Answer:

A

Explanation:

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A solution is prepared by dissolving 0.23 mol of benzoic acid and 0.27 mol of sodium benzoate in water sufficient to yield 1.00
Monica [59]

Answer:

The pH does not decrease drastically because the NaOH reacts with the <u>D) Benzoic acid</u> present in the buffer solution.

Explanation:

The hydroxide ions will react with acidic part of the solutions, it means the benzoic acid, so it will form the conjugate base, the benzoate ion.

7 0
3 years ago
What is the formula mass of MgO (how much does one mole of it weigh)
Nadusha1986 [10]

Answer:

40.3044 g/mol

Explanation:

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4 0
2 years ago
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2. A solvent used in cleaning is found to contain only the elements carbon, hydrogen, and chlorine. When a
KIM [24]

mass of C = 0.238 g

mass of H =0.00989 g

mass of Cl = 1.05 g

Explanation:

Determine the masses of carbon, hydrogen, and chlorine in the original sample of the solvent.

First we need to calculate the molar mass of carbon dioxide (CO₂) and water (H₂O)

molar mass of CO₂ = molar mass of C × 1 + molar mass of O × 2

molar mass of CO₂ = 12 × 1 + 16 × 2 = 44 g/mole

molar mass of H₂O = molar mass of H × 2 + molar mass of O × 1

molar mass of H₂O = 1 × 2 + 16 × 1 = 18 g/mole

Now, to find the mass of carbon and hydrogen in the original sample of solvent, we devise the following reasoning:

if              44 g of CO₂ contains 12 g of C

then   0.872 g of CO₂ contains X g of C

X = (0.872 × 12) / 44 = 0.238 g of C

if               18 g of H₂O contains 2 g of H

then   0.089 g of H₂O contains Y g of H

Y = (0.089 × 2) / 18 = 0.00989 g of H

And now, we can find the mass of chlorine:

mass of sample = mass of C + mass of H + mass of Cl

mass of Cl = mass of sample - mass of C - mass of H

mass of Cl = 1.30 - 0.238 - 0.00989

mass of Cl = 1.05 g

Learn more about:

combustion reaction

brainly.com/question/14125538

#learnwithBrainly

4 0
3 years ago
Why a hot cup if water has more thermal energy than a cold cup of water? ​
Scilla [17]

Answer:

The hotter the substance, the more its molecules vibrate, and therefore the higher thermal energy

:)

8 0
3 years ago
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Why does temperature increase between changes of physical state?
Alekssandra [29.7K]
As temperatures increase, additional heat energy is applied to the constituent parts of a solid, which causes additional molecular motion. Molecules begin to push against one another and overall volume of a substance increases. When thermal energy is added to a substance, it’s temperature increases.
7 0
3 years ago
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