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3 years ago

Which of the following is an organic compound?

Chemistry

2 answers:

Vadim26 [7]3 years ago

5 0

Most of organic compounds consists of C and H atoms. Hence C. octane (C8H18) is the correct option.

hram777 [196]3 years ago

4 0

I think the correct answer from the choices listed above is option C. It would be octane that is an organic compound. They are, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.

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The Density equation is:

Sergeu [11.5K]

Answer:

p=m/v

p equals density M equals mass and v = volume

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2 years ago

Which of the statements is correct?

Step2247 [10]

Answer:

A. Magnet has a north pole and south pole.

Explanation:

- A magnet has a north and south pole

- Magnets attract paper clips due to the metals present

- Magnetic fields are not visible

- North pole and south pole attract each other

Only the first statement is correct, the answer is (A).

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3 years ago

Read 2 more answers

What type of chemical bond forms during a dehydration synthesis reaction?

allochka39001 [22]

Answer:

A dehydration synthesis reaction involving un-ionized moners..: In the dehydration synthesis reaction between two molecules of glucose, a hydroxyl group from the first glucose is combined with a hydrogen from the second glucose, creating a covalent bond that links the two monomeric sugars

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3 years ago

What is the name of this compound?

Digiron [165]

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3 years ago

What is the freezing point of an aqueous solution that has 25.00 g of calcium iodide dissolved in 1250 g of water?

ozzi

Answer:

- 0.380ºC

Explanation:

The lowering of the freezing point of a solvent is a colligative property ruled by the formula:

$\Delta T_f=K_f\times m\times i$

Where:

ΔTf is the lowering of the freezing point

Kf is the molal freezing constant of the solvent: 1.86 °C/m

m is the molality of the solution

i is the van't Hoff factor: the number of particles (ions) per unit of ionic compound.

a) molality, m

m = number of moles of solute/ kg of solvent

number of moles of CaI₂ = mass in grams/ molar mass

number of moles of CaI₂ = 25.00g / 293.887 g/mol = 0.0850667mol

m = 0.0850667mol/1.25 kg = 0.068053m

b) i

Each unit of CaI₂, ideally, dissociates into 1 Ca⁺ ion and 2 I⁻ ions. Thus, i = 1 + 2 = 3

c) Freezing point lowering

ΔTf = 1.86 °C/m × 0.068053m × 3 = 0.3797ºC ≈ 0.380ºC

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6 0

3 years ago