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Ne4ueva [31]
3 years ago
12

which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? H- OH- H2O+ H3O+

Chemistry
2 answers:
Goryan [66]3 years ago
8 0

Answer : The correct option is, H_3O^+

Explanation :

Acid : It is a substance that has ability of donating proton or hydrogen ion, H^+.

The general acid dissociation reaction will be,

HX\rightarrow H^++X^-

As per question, when the positive hydrogen ions bonded to the water molecule then it forms hydronium ion.

The balanced reaction will be,

H^++H_2O\rightarrow H_3O^+

Hence, the ion formed is, H_3O^+

ArbitrLikvidat [17]3 years ago
3 0

Answer:

H₃O⁺.

Explanation:

  • When H⁺ is bonded to water molecule, it forms hydronium ion:

<em>H⁺ + H₂O → H₃O⁺.</em>

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2 years ago
If 75 grams of oxygen react, how many grams of aluminum are required?
german

Answer:

84.24 g

Explanation:

Given data:

Mass of oxygen = 75 g

Mass of Al required to react = ?

Solution:

Chemical equation:

4Al + 3O₂     →   2Al₂O₃

Number of moles of oxygen:

Number of moles = mass/ molar mass

Number of moles = 75 g/ 32 g/mol

Number of moles = 2.34 mol

Now we will compare the moles of oxygen with Al.

                          O₂         :          Al

                           3          :             4

                        2.34        :         4/3×2.34 = 3.12 mol

Mass of Al required:

Mass = number of moles × molar mass

Mass = 3.12 mol × 27 g/mol

Mass = 84.24 g

5 0
2 years ago
You find apiece of limestone on ahike. what substances are likely to have formed that rock?
enyata [817]

Limestone is mainly made up of calcium carbonate, CaCO3. When it is heated, it breaks down to form calcium oxide and carbon dioxide. Calcium oxide reacts with water to produce calcium hydroxide. But if u wanna know how it is formed? It's formed by erosion and weathering which is a type of 'Sedimentary Rock'. Erosion and weathering, carried rocks and end up at the sea or ocean. Which is the end way to go! At there, rocks combined by adding more and more just under the sea. The combination of rocks made it harden. First, it was just small little eroded particles end up at the sea. But at last, it became a very hard rock which isn't easy to break!

7 0
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What is the formula of haso4​
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The structure of Ferrarrisite Ca5(HAs O4)2(AsO4)2

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1. Complete the reaction illustrating the hydration reaction of a strong electrolyte CaCl2​
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Answer:

CaCl₂(s) ⟶ Ca²⁺(aq) + 2Cl⁻(aq)

Explanation:

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8 0
3 years ago
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