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3 years ago

PLEASE HURRY! What is the name of this alkane?

Chemistry

1 answer:

belka [17]3 years ago

7 0

Answer:

C. 1-ethyl, 3-methylcyclohexane

(Photo for proof at the bottom.)

Explanation:

The 1-ethyl is because you start numbering from the longest branch, towards the next closest branch. Prefix "eth-" means two, there are 2 carbons in the longest branch. 3-methyl is because the next branch is at number 3, and prefix "meth-" means 1, there is 1 carbon in that chain. "Cyclo" in cyclohexane means the skeletal model is shaped like a ring, and the "hexane" means there are 6 carbons in the ring. Prefix "hex" means 6.

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Plan and create a model of complex carbohydrate that shows the relationship between simple and complex carbohydrates.

olga55 [171]

Answer:

Look at the image, It would help. Copy and paste if you need to

Explanation:

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3 years ago

Describe what a mole is -- its value, its uses, the general concept.

Anna [14]

A mole is the assemblage of 6.022×10^23 ions.This number is also known as Avogadro Number.

Avogadro constant=6.022×10^23 mol^-1

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3 years ago

What is Avogadro's number, and why is it useful?

Makovka662 [10]

Answer:

Explanation:

Substance are consist of very large number of atoms, ions , molecules etc.

They can not be count in a simple way. Scientist used Avogadro number to express the large number of atoms, ions, molecules.

Avogadro number:

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

18 g of water = 1 mole = 6.022 × 10²³ molecules of water

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

96.06 g of SO₄²⁻ ion = 1 mole of SO₄²⁻ ion = 6.022 × 10²³ ions of SO₄²⁻

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3 years ago

How many moles of H+ ions are needed to neutralized 3 Liters of 8M<br> NaOH?*

Nataliya [291]

Answer:

Answer:

0.027 mole of NaOH.

Explanation:

We'll begin by obtaining the number of mole H2SeO4 in 45mL of 0.30M H2SeO4

This is illustrated below:

Molarity of H2SeO4 = 0.3M

Volume of solution = 45mL = 45/1000 = 0.045L

Mole of H2SeO4 =...?

Mole = Molarity x Volume

Mole of H2SeO4 = 0.3 x 0.045

Mole of H2SeO4 = 0.0135 mole

Next, the balanced equation for the reaction. This is given below:

H2SeO4 + 2NaOH –> Na2SeO4 + 2H2O

From the balanced equation above,

1 mole of H2SeO4 required 2 moles of NaOH.

Therefore, 0.0135 mole of H2SeO4 will require = 0.0135 x 2 = 0.027 mole of NaOH.

Therefore, 0.027 mole of NaOH is needed for the reaction.

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Explanation:

3 0

3 years ago

Read 2 more answers

How does molecular shake affect polarity?

PSYCHO15rus [73]

Answer:

I believe its A

Explanation:

A molecule that has a symmetrical shape will be a nonpolar molecule.

7 0

3 years ago