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Rzqust [24]
3 years ago
13

When comparing anions from the same group, larger size of A in the H-A bond increases / decreases (circle the correct answer) ac

id strength.
Chemistry
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

increases

Explanation:

The acid strength of any species depends on the stability of its conjugate base ,

The conjugate base is formed via the removal of the hydrogen ion .

Hence , more stable the conjugate base , more acidic would be the compound .

The conjugate base have a negative charge ,

Hence , larger the anion or the conjugate base , more stable it would be , because the negative charge will get dispersed on the larger species , hence will become stabilized .

Therefore ,

Larger the size of anion or the conjugate base , more stable would be the anion and more acidic would be the compound .

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Hi there!

It can take years to remove all of the harmful substances from the water.

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8 0
3 years ago
Which scenario involves a reaction that is at equilibrium?
musickatia [10]

Answer:

the amount of products and reactants is constant

4 0
3 years ago
If a sample of magnesium with a mass of 35.0 grams reacts with 35.0 grams of oxygen how much magnesium oxide will be produced?​
slamgirl [31]

Answer:

58.0 g of MgO

Explanation:

in a perfect world, 70 g, however we don't live in a perfect world

The equation of reaction

2Mg + O₂ --> 2MgO

first find which element is limiting:

35 g x 1 mol/24.3 g of Mg x 2 mol of MgO/ 2 mole of Mg = 1.44 moles of MgO

35 g x 1 mol/32g of Mg x 2 mol of MgO/ 1 mole of O₂ = 2.1875 moles of MgO

This means Mg is the limiting factor, so you will be using this moles to find grams of MgO

1.44 mols of MgO x 40.3 g of MgO/ 1 mol = 58.0 g of MgO

8 0
2 years ago
What is the pH of a sample with [OH-] = 2.5 x 10-11 M?
sveticcg [70]

Answer:

The pH of the sample is 3,4.

Explanation:

We calculate the pOH from the formula pOH = -log (OH-). We know that for all aqueous solutions: pH + pOH = 14, and from there we clear pH:

pOH= -log (OH-)=10,60

pH + pOH = 14

pH + 10,60 = 14

pH=14 -10,60

<em>pH=3,4</em>

3 0
3 years ago
In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules:.
neonofarm [45]

Answer:

In the kinetic molecular theory of gas behavior; the assumption is made that gas molecules move with a kinetic energy equal to their centigrade temperature_ move rapidly in random directions: are close together in their container which exerts pressure_ are attracted to each other by strong forces.

Explanation:

4 0
2 years ago
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