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Burka [1]
3 years ago
8

Suppose you encounter a chemical formula with h as the cation. what do you know about this compound immediately?

Chemistry
1 answer:
jeka943 years ago
7 0

Answer:

By finding a chemical formula with H as a cation (positively charged ion), you can immediately know that the compound is an acid.

Explanation:

<u><em> By finding a chemical formula with H as a cation (positively charged ion), you can immediately know that the compound is an acid.</em></u>

According to the Arrhenius Acid-Base Theory, acids are those substances that dissolved in water divide by generating H⁺ together with an anion (ion with a negative charge). In an aqueous solution, the H⁺ protons react immediately with the water molecules to form H₃O⁺ hydronium ions.

According to this theory, those acids that dissociate completely are strong acids (releasing all protons H⁺), while acids that do not dissociate completely are weak acids (the percentage of dissociation is not 100%, releasing few protons H⁺)

An example is:

HCl + H₂O ⇒ Cl⁻ + H₃O⁺

This is an example of a strong acid.

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In the compound cah2 calcium has an oxidation number of 2+ and hydrogen has an oxidation number of
sesenic [268]

The oxidation number of H is -1.

Sum of the oxidation numbers in each element = charge of the complex

CaH₂ has 1 Ca atom and 2H atoms. The charge of the complex is zero. Let’s say Oxidation number of H is "a".

Then,

<span>    (+2) + 2 x a = 0 </span>

<span>        +2  + 2a  = 0</span>

                  2a = -2

                    a = -1

Hence, the oxidation number of Hydrogen atom in CaH₂ is -1


7 0
2 years ago
What are the correct coefficients for each reactant and product when this equation is balanced? Make sure to select the correct
Mars2501 [29]

Answer: 44

Explanation:

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3 years ago
What is the concentration (m) of sodium ions in 4.57 l of<br> a.847 m na3p solution?
drek231 [11]
A group of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels. Which argument <span>best </span>fits the conversation? 
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8 0
3 years ago
The mass of a solid substance is 21.112 g. If the volume of the solid substance is 19.5 cm3, calculate the density of the substa
Ostrovityanka [42]

Answer:

ρ = 1.08 g/cm³

Explanation:

Step 1: Given data

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Volume of the substance (V): 19.5 cm³

Step 2: Calculate the density of the substance

The density (ρ) of a substance is equal to its mass divided by its volume.

ρ = m / V

ρ = 21.112 g / 19.5 cm³

ρ = 1.08 g/cm³

The density of the substance is 1.08 g/cm³.

6 0
3 years ago
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6 0
2 years ago
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