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Chemistry

1 answer:

enyata [817]3 years ago

7 0

Answer:

Two-dimensional structures of methane show that it is a carbon atom bonded to four (4) hydrogen atoms while ethane is two (2) carbon bound to six (6) hydrogens. The three-dimensional structures show that methane is tetrahedral is shape while ethane is trigonal pyramidal. The tw0-dimensional structure does not show bond angles and the position in space of the atoms within the molecule.

Two dimension structure can be used to illustrate a chemical reaction and the exchange of atoms by donors and acceptors in the reaction. Three-dimensional structures are significant in illustrating the crystal lattice of molecules since their 3-D structures determine how the molecules interact with each other

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I need help please, will give 5 stars

DedPeter [7]

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3 years ago

Write the balanced equation. Then calculate the volume of 0.65 M HCl required to completely neutralize 400.0 ml of 0.88 M KOH.

Misha Larkins [42]

Hello!

The balanced equation for the neutralization of KOH is the following:

HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

To calculate the volume of HCl required, we can apply the following equation:

$moles HCl = moles KOH \\ \\ cHCl*vHCl=cKOH*vKOH \\ \\ vHCl= \frac{cKOH*vKOH}{cHCl}= \frac{400 mL*0,88M}{0,65M}= 541,54mL$

So, the required volume of HCl is 541,54 mL

Have a nice day!

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3 years ago

Which of the following should be classified as a mixture? water air iron helium

Evgesh-ka [11]

Air is a mixture because it is made up of many constituents like oxygen, argon etc. it can be physically separated by fractional distillation. it doesnt have a formula unlike compounds and elements. its composition varies differently with its constituents.

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3 years ago

Read 2 more answers

Which statement is false? a) When reactants become products, they do so through an intermediate transition state. b) At equilibr

Tom [10]

Answer:

b) At equilibrium, equal amounts of products and reactants are present.

Explanation:

At equilibrium , the ratio of product of concentration of products and product of concentration of reactants is constant .

A + B ⇄ C + D

[C] [ D] / [ A ] [ B ] = Constant

So, the statement ( b ) is false .