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notsponge [240]
3 years ago
13

In which molecule is hydrogen bonding most important?

Chemistry
1 answer:
Airida [17]3 years ago
4 0
The most important hydrogen bonding is the DNA.
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What is the formula of hexaaquamanganese(ii) sulfate? express your answer as a chemical formula?
Digiron [165]

Answer : The formula of hexaaquamanganese(II)sulfate is [Mn(H_2O)_6]SO_4.

Explanation :

Rules for writing formulas of coordination complexes :

  • Central metal is written first and then the ligands are written along with their prefixes.
  • The anion ligands are written before the neutral ligands.
  • If there are more than one anion ligands or neutral ligands then they are written in alphabetical order.

The given name of complex is, hexaaquamanganese(ii) sulfate.

In this, the central metal is manganese which is written as Mn and the ligand is water (which is a neutral ligand) is written as H_2O and an anion is sulfate which is written as SO_4.

Water is a neutral ligand and sulphate has a charge of -2. As the overall complex is neutral the metal bears a +2 charge which is represented in Roman numeral after the metal.

Therefore, the formula of hexaaquamanganese(II)sulfate is written as [Mn(H_2O)_6]SO_4.

3 0
3 years ago
In a butane lighter 9.8g of butane combines with 35.1g of oxygen to form 29.6g carbon dioxide and how many grams of water
german
If the reacted oxygen is 35.1 g.
H2O mass= (35.1+9.8)-29.6
= 19.3g
4 0
3 years ago
The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in
Dmitry_Shevchenko [17]
Let <span>A= ebc </span>
<span>     0.765 = 86,300*1.3*c </span>
<span>
Solve for c = approximately 7E-6 Molar
                  = mols/L soln. </span>
<span>g = 7E-6*893.49
   = about 0.006 g chlorophyll/L soln. </span>
<span>
1000 x 0.785 = 785 g ethanol. </span>
<span>Conc. = about 0.006g chlorophyll/785 g soln. </span>
<span>
Change that to ppm. by using formula:
(0.006/785)*1E6</span>
5 0
3 years ago
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How is a compound different from a mixture?
Marrrta [24]

Answer: a compound is a chemically made or chemically bonded where as a mixture is just something added like a smoothie

6 0
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PLEASE HELP!!!!!!!! All of the following are common air pollutants that can be damaging to the environment except
satela [25.4K]
I'm pretty sure It's D, Phosphates
7 0
3 years ago
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