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Chemistry

1 answer:

Vanyuwa [196]2 years ago

7 0

Explanation:

pay attention in class next time bye hope it helps THE ANSWER IS C bye

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Consider the resonance structures of formate. the first lewis structure of formate has a central carbon atom. a hydrogen atom an

OleMash [197]

So,

Formate has a resonating double bond.

In molecular orbital theory, the resonating electrons are actually delocalized and are shared between the two oxygens. So the carbon-oxygen bonds can be described as 1.5-bonds (option B). I'm not sure if option C is correct, however, because the likelihood of both delocalized electrons being in the area of one oxygen atom is less than 50%.<span />

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3 years ago

1. Convert the following temperatures to K.<br> a) 104 C<br> b) -3 C

gogolik [260]

Answer:

a) 377 k

b) 270 k

Explanation:

a) 104 + 273 = 377 k

b) -3 + 273 = 270 k

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3 years ago

Name the following straight-chain

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What mass of sucrose needs to be dissolved in 540 g of water in order to prepare a 15% by mass solution.

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Answer:

95.3g

Explanation:

Given parameters:

Mass of water = 540g

Percentage by mass of solution = 15%

Unknown:

Mass of sucrose = ?

Solution;

To solve this problem, we must understand that a solution is made up of solute dissolved in a solvent. A solute is the solid dissolved in another. The solvent is the is dissolving medium;

Percentage by mass of solute in solution = $\frac{Mass of solute}{Mass of solution} x 100$