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3 years ago

Substance A is added to water. After it is added, hydrogen ions are produced and accumulate in the

Chemistry

1 answer:

Katena32 [7]3 years ago

4 0

Substance A is an acid.

Substance B is a group of hydronium ions.

Explanation:

From the description above, we can deduce that substance A is an acid whereas substance B is a group of hydroxonium ions.

An acid can be defined as a substance that produces hydrogen ions in solution.

Acids interacts with water to produce excess hydroxonium ions, H₃O⁺ in an aqueous solution.

The hydroxonium ions results from the chemical bonding between oxygen of water molecules and protons released by the ionization of the acid:

HCl + H₂O → H₃O⁺ + Cl⁻

Learn more:

Acid brainly.com/question/5121777

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uuuh 4.25191 × 10-21 grams????

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3 years ago

Where is the kinetic energy GREATEST?

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3 years ago

1. A sample of polystyrene is found to have a number-average molar mass of 89,440 g mol−1 . Neglecting contributions from end gr

Snowcat [4.5K]

Answer:

The weight-average molar mass of polystyrene is 134,160 g/mol.

Explanation:

Molar mass of the monomer styrene , $C_8H_8$ , M=104 g/mol

Given , number average molar mass of the polymer , M'= 89,440 g/mol

Degree of polymerization = n

$n=\frac{M'}{M}=\frac{89,440 g/mol}{104 g/mol}=860$

The weight-average molar mass = $M_{avg}=?$

Molar mass dispersity is ratio of weight-average molar mass to the number average molar mass of the polymer.

$\text{Molar mass dispersity}=\frac{M_{avg}}{M'}$

$1.5=\frac{M_{avg}}{89,440 g/mol}$

$M_{avg}=89,440 g/mol\times 1.5 = 134,160 g/mol$

The weight-average molar mass of polystyrene is 134,160 g/mol.

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3 years ago

Which substance has a chemical formula with the same ratio of metal ions to nonmetal ions as in potassium sulfide?

pav-90 [236]

Answer=1

Potassium Sulfide= K2S (two metals, one non metal)

Sodium Oxide=Na2O (two metals. one nonmetal)

Sodium Chloride=NaCl (one metal, one nonmetal)

Magnesium Oxide=MgO (one metal, one nonmetal)

Magnesium Chloride=MgCl2 (one metal, two nonmetals)

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3 years ago

Read 2 more answers