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Vilka [71]
3 years ago
11

Chose the statements that are TRUE from the list below Group of answer choices Ions exist alone in nature Lactate is created by

our muscles during anaerobic glycolysis, it reacts with water to form lactic acid. We add calcium carbonate to lakes after acid rain because the calcium ion is basic and will react with the acid. If Lake A has a limestone base and Lake B has a granite base, after each receive the same acid rain fall, Lake B will be more acidic than Lake A Fluorine anion is a weak base because hydrofluoric acid is a weak acid All salts are either acidic or basic after being dissolved in water.
Chemistry
1 answer:
hichkok12 [17]3 years ago
6 0

Answer:

Explanation:

1 ) Lactate is created by our muscles during anaerobic glycolysis, it reacts with water to form lactic acid  - True

2 ) We add calcium carbonate to lakes after acid rain because the calcium ion is basic and will react with the acid. True

3 )  If Lake A has a limestone base and Lake B has a granite base, after each receive the same acid rain fall, Lake B will be more acidic than Lake A : True

limestone is calcium carbonate which is basic but granite is not basic so it can not neutralise acid. So lake B remains more acidic .

4 ) Fluorine anion is a weak base because hydrofluoric acid is a weak acid False

A weak acid has strong anion . Hydrofluoric acid is weak but fluorine anion is strong.

5 ) All salts are either acidic or basic after being dissolved in water false .

Neutral salts are also found.

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Pani-rosa [81]
Formic acid when in water would dissociate into ions just like any acids. It would dissociate into the hydrogen ion and the formate ion. The equilibrium dissociation equation would be written as:

<span>HCOOH (aq) + H2O (l) ⇌ H+ (aq) + HCOO- (aq)

Formic acid is a weak acid which means that when in aqueous solution it does not completely dissociate into its corresponding ions. Only a certain amount that would be dissociated so in the solution there will be HCOOH, HCOO- and H+ molecules. It is also known as Methanoic acid and an important substance for the synthesis of a number of substances. It is naturally occurring in ants.</span>
7 0
3 years ago
3. 2.15 x 3.1 x 100 =
jeka94

Answer:

666.5

Explanation:

Multiply 2.15 and 3.1 to get 6.665.

6.665×100≈666.5

Multiply 6.665 and 100 to get 666.5.

666.5

3 0
3 years ago
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What happens when an acid reacts with a base?
shepuryov [24]

Answer:

They neutralize each other

3 0
3 years ago
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Which of the following are peninsulas in Southeast Asia?
xxTIMURxx [149]

Answer:

B.

Explanation:

5 0
3 years ago
Ba(OH)2 Ba+2 + 2 OH- (dissolved in solution). Which will NOT happen to the equilibrium of this solution as H+ ions are added? H+
prohojiy [21]

Answer:

The reaction will move to the left.

Explanation:

  • For the reaction:

<em>Ba(OH)₂ = Ba²⁺ + 2OH⁻,</em>

<em>Ba(OH)₂ is dissociated to Ba²⁺ and 2OH⁻.</em>

  • If H⁺ ions are added to the equilibrium:

H⁺ will combine with OH⁻ to form water.

<em>So, the concentration of OH⁻ will decrease and the equilibrium is disturbed.</em>

<em />

<em>According to Le Châtelier's principle: </em>when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.

  • So, the reaction will move to the right to suppress the effect of decreasing OH⁻ concentration.

  • The base will dissociate to form more OH⁻ and thus, the quantity of Ba(OH)₂ will decrease.

<em>So, the right choice is: the reaction will move to the left, is the choice that will not happen to the equilibrium.</em>

5 0
3 years ago
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