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ella [17]
3 years ago
13

True or false? social sciences incluse biology and chemistry

Chemistry
2 answers:
Vlad [161]3 years ago
6 0

False.

Social Science is the study of human society and social relationships, which encompasses history, psychology, etc.

~

lara31 [8.8K]3 years ago
5 0

Yeah the answer is false

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Write the condensed formula from left to right, starting with (CH3)x where x is a number.
pochemuha

Complete question:

Write the condensed formula from left to right, starting with (CH3)x where x is a number.

See attached image for the structure formula of the compound

Answer:

(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane

Explanation:

If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.

Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).

The condensed formula will be written as;

(CH₃)₂CHC(CH₃)₃

This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane

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4 years ago
What is the mass of 2.1 moles of the hydrate Nickel (II) carbonate pentahydrate (NiCO3 x 5H2O)?
kifflom [539]

The  mass of 2.1 moles of the hydrate Nickel (II) carbonate pentahydrate NiCO3 x 5H2O 773.5 grams.

<h3>What are moles?</h3>

Mole is the smallest particle of atom which is equal to the Avogadro's number which is 2.303 × 10²³moles of an atom and can be calculated by,

             

          number of moles = mass of mole / molar mass of the mole.

            mass = 2.1 moles

            molar mass of NiCO3 x 5H2O = 368.38

Substituting the value in the formula,

2.1 mole = mass of mole / 368.38

mass of mole = 773.59 grams.

Therefore, mass of 2.1 moles of the hydrate Nickel (II) carbonate pentahydrate NiCO3 x 5H2O 773.5 grams.

Learn more about moles, here:

brainly.com/question/26416088

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2 years ago
What animals use the earths magnetic field for navigation
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3 years ago
Help with stochiometry asap
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3 years ago
The ph of a fruit juice is 2.2 . find the hydronium ion​ concentration, left bracket upper h 3 upper o superscript plus right br
patriot [66]

Answer:

[H₃O⁺] = 6.31 x 10⁻³ M.

Explanation:

  • To find the hydronium ion concentration [H₃O⁺], we can use the relation:

<em>pH = - log[H₃O⁺].</em>

<em></em>

∴ 2.2 = - log[H₃O⁺].

∴ log[H₃O⁺] = - 2.2

<em>∴  [H₃O⁺] = 6.31 x 10⁻³ M.</em>

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4 years ago
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