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4 years ago

Identify each type of bond:

Chemistry

1 answer:

zloy xaker [14]4 years ago

6 0

Answer:

The type of bond between the Oxygen atom and the hydrogen is Covalent

this is because the 2 electrons are being shared by both hydrogen and oxygen

The type of bond this molecule makes as a whole is called a Hydrogen Bond

A hydrogen bond is formed because of the partial +ve and -ve charge in a molecule

The cause of the partial +ve and -ve charge is the comparatively high electronegativity of oxygen which makes the electron get attracted towards the oxygen atom while the hydrogens try to maintain the maximum distance from the lone pairs due to repulsion

Hope it helped

Kindly Mark Brainliest

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A mixture 21.7 g NaCl 3.74 g kcl and 9.76 g licl how many moles of nacl are in this mixture

slava [35]

Moles (mol) = mass (g) / molar mass (g/mol)

Mass of NaCl = 21.7 g
Molar mass of NaCl = <span>58.4 g/mol
Hence, moles of NaCl = </span>21.7 g / 58.4 g/mol = 0.372 mol

Hence moles of NaCl in the mixture is 0.372 mol.

Let's assume that mixture has only given compounds and free of impurities.
Then, we can present this as a mole percentage.

mole % = (moles of desired substance / Total moles of the mixture) x 100%

Hence,
mole % of NaCl = (moles of NaCl / Total moles of the mixture) x 100%

Total moles of mixture = moles of NaCl + KCl + LiCl

Mass of KCl = 3.74 g
Molar mass of NaCl = 74.6 g/mol
Hence, moles of NaCl = 3.74 g / 74.6 g/mol = 0.050 mol

Mass of NaCl = <span>9.76 g
</span>Molar mass of NaCl = 42.4 g/mol
Hence, moles of NaCl = 9.76 g / 42.4 g/mol = 0.230 mol

Total moles = 0.372 mol + 0.050 mol + 0.230 mol = 0.652 mol

mole % of NaCl = (moles of NaCl / Total moles of the mixture) x 100%
= (0.372 mol / 0.652 mol) x 100%
= 57.06%

Hence, mixture has 57.06% of NaCl as the mole percentage.

8 0

3 years ago

How many grams of aluminum chloride can be produced from 7.32g of ammonium perchlorate?

Alla [95]

Answer:

2.77g of $AlCl_{3}$ can be produced.

Explanation:

Use stoichiometry.

Balanced equation: $3Al + 3NH_{4} ClO_{4}$ ⇒ $Al_{2} O_{3} + AlCl_{3} +3NO + 6H_{2} O$

$NH_{4} ClO_{4} : AlCl_{3}$

3 : 1 ** $n=\frac{m}{M}$

0.0623** : $x$ $n=\frac{7.32}{117.49}$ = 0.0623

$3x=0.0623\\x=0.020767$

$n=\frac{m}{M}$

$m=nM$

m= (0.020767)(133.34)

m= 2.77g

5 0

2 years ago

Consider the following chemical reaction of bromothymol blue indicator. It appears yellow in undissociated form and blue in its

TiliK225 [7]

The addition of hydrogen carbonate to bromothymol blue turns the solution blue. Thus, option B is correct.

The balanced equation for the dissociation of bromothymol blue is:

$\rm HC_2H_3O_2\;\leftrightharpoons H^+\;+\;C_2H_3O_2^-$

The color of dissociated form is yellow and undissociated form is blue.

<h3>What is the final color of solution?</h3>

The addition of hydrogen carbonate results in the dissociated ions as:

$\rm H_2CO_3\;\rightarrow\;2\;H^+\;+\;CO_3^-$

The dissociation results in the increased hydrogen ion concentration. The undissociated form in the reaction mixture increases.

Thus, the color of the solution will turn blue. Hence, option B is correct.

Learn more about bromothymol blue, here:

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3 years ago

What does the MC1R gene code for

zlopas [31]

The MC1R gene provides instructions for making a protein called the melanocortin 1 receptor. This receptor plays an important role in normal pigmentation. The receptor is primarily located on the surface of melanocytes, which are specialized cells that produce a pigment called melanin.

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3 years ago

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How many valence electrons does He have

horsena [70]

Answer:

2 valence electrons

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3 years ago