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2 years ago

Of these four liquids, which is the most viscous?

Chemistry

2 answers:

erma4kov [3.2K]2 years ago

8 0

Answer: Option (d) is the correct answer.

Explanation:

Viscosity is defined as the ability of a fluid to resist its flow. That is, more thicker a fluid is less likely it is able to flow with ease.

For example, viscosity of honey is high as compared to water.

Whereas water at room temperature, ethyl alcohol at room temperature, and hot motor oil can flow easily.

Thus, we can conclude that out of the given options, honey at room temperature is the most viscous.

Iteru [2.4K]2 years ago

6 0

I believe the correct answer from the choices listed above is the last option. <span>Of these four liquids, the most viscous one is honey at room temperature. Honey is made up of sugars and the hydrogen of the sugars and water is what makes it more viscous.</span>

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Strontium nitrate, Sr(NO3)2, is used in fireworks to produce brilliant red colors, Suppose we need to prepare 366.6 ml. of 0.115

natulia [17]

Answer:

$\boxed{\text{8.91 g}}$

Explanation:

1. Calculate the moles of Sr(NO₃)₂

$n = \text{366 mL} \times \dfrac{\text{0.115 mmol}}{\text{1 mL}}= \text{42.09 mmol}$

2. Calculate the mass of SrNO₃)₂

$m = \text{42.09 mmol} \times \dfrac{\text{211.63 mg}}{\text{1 mol}}= \text{8910 mg} = \text{8.91 g}\\\text{The mass of strontium nitrate required is }\boxed{\textbf{8.91 g}}$

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2 years ago

Which of the following pure compounds will exhibit hydrogen bonding?

zimovet [89]

Explanation:

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For example, $CH_{3}CH_{2}OH$ , $CH_{3}NH_{2}$ and $NH_{3}$ all these compounds contain an electronegative atom attached to hydrogen atom.

Therefore, these pure compounds will exhibit hydrogen bonding.

Thus, we can conclude that out of the given options $CH_{3}CH_{2}OH$ , $CH_{3}NH_{2}$ and $NH_{3}$ are the pure compounds which will exhibit hydrogen bonding.

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2 years ago

which state of matter is made up of atoms and molecules that are held closely together by attractive forces between them

Amiraneli [1.4K]

Answer:

In solid state all the atoms and molecules are held very closely together by strong attractive forces.

Explanation:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

Consider the example of water. Which is present in three state solid, liquid and gas. In the form of ice its volume is less as compared to the liquid and gas, because molecules are tightly packed. If we melt the same ice we observe the volume is increase because molecules are now apart from each other. The distance between the molecules of water increased. If the same amount of water is evaporated the molecule of water will occupy all available space , and the distance between the water molecules get increased and inter molecular forces becomes negligible.

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2 years ago

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Nastasia [14]

Answer:

I don't think so

Explanation:

The equation doesn't look balanced

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2 years ago

What is a controlled factor in an experiment?

Romashka-Z-Leto [24]

Sorry this will probably be pretty long.

So think of the "control" as being something you yourself add to increase or decrease the effects in an experiment.
I'll give you an example so it is not as confusing.
Say you have decided to make an experiment on plants. Which plant can grow the fastest on which type of liquid? What is being added to this experiment? The liquid! Or all of the liquids you used. Like if you used Coke, Lime Gatorade, Orange Gatorade, and Water. Each drink will EFFECT each plant differently.
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2 years ago