Answer: The theories are such that if any chemical produce H+ ion then it is an acid and if the chemical produces OH- ion then it's a base.
Explanation:
sorry I am not that much knowledgeable like all of you
Answer:
(3) saturated
Explanation:
Hello,
In this case, a solution that is at equilibrium must be (3) saturated as at the equilibrium, the entire solute is completely dissolved into the solvent, so no leftovers are present. Unsaturated solutions are not at equilibrium since there is a portion of solvent that is not contributing to equilibrium. Concentrated solutions are not at equilibrium since they could have more solution than allowed into the solvent.
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topaz
talc
diamond
graphite
Hi there, thanks for asking a question here on Brainly!
The hardest known mineral in this planet is the diamond.
Answer: Letter C ✅
Hope that helps! ★
Answer: The organic compound used to create fragrances in perfume industry are ester.
Explanation:
Organic compounds are defined as the compounds in which a covalent bond is present between a hydrogen and a carbon atom. These are also known as hydrocarbons.
Esters are an organic compound which have a pleasant and fruity smell and is used in the perfume industry.
Therefore, the organic compound used to create fragrances in perfume industry are ester.
Answer: The pH of the solution is 13.
Explanation:
pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution.
We are given:
Concentration of (Conversion factor: )
1 mole of calcium hydroxide produces 1 mole of calcium ions and 2 moles of hydroxide ions
Concentration of
Putting values in above equation, we get:
We know:
Hence, the pH of the solution is 13.
Answer is "0.05 mol".
Explanation;
We can do calculation by using a simple formula as
n = m/M
Where, n is the number of moles of the substance (mol), m is the mass of the substance (g) and M is the molar mass of the substance (g/mol).
Here,
n = ?
m = 2.80 g
M = 56.08 g/mol
By substitution,
n = 2.80 g /56.08 g/mol
n = 0.0499 mol ≈ 0.05 mol