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DENIUS [597]
3 years ago
9

What is another name for the activation energy barrier in a reaction?

Chemistry
2 answers:
Stells [14]3 years ago
6 0

Answer:

Transition state.

Explanation:

The activation energy is the minimum amount of energy necessary absorbed by the reactant molecules to achieve the threshold energy, which is the energy of the transition molecules, after that, the products will be formed.

The reaction only happens if it occurs, so the energy of the molecules must increase until the activating energy. The difference between those energies is called activation energy barrier or transition state, because is when the transition molecules are formed.

fenix001 [56]3 years ago
3 0
Bond energy or mass energy 

if this help leave a thanks 
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V=IxR       v equals i multiplied by r therefore you can find any of the three by moving around the parts of the equation
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A saturated aqueous solution of sucrose contains 200 grams of sucrose and 100 grams of water. Which is the solvent: sucrose or w
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Answer:

The solvent is water

Explanation:

The solvent is the substance in the mixture that is able to dissolve the other substances. The solvent is usually the liquid.

In the problem is said: "A saturated aqueous solution", that means the solution is made by a solute that is in excess (Sucrose) dissolved in the solvent (Water).

The solvent is water

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Write the chemical symbol for the isotope of cobalt with 37 neutrons
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Answer:

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Each 5-ml teaspoon of Extra Strength Maalox Plus contains 450 mg of magnesium hydroxide and 500 mg of aluminum hydroxide. How ma
Art [367]

Answer:

0.0347 moles of hydronium ions

Explanation:

The equation of the neutralization reaction between hydroxide and hydronium ions is given below:

H₃O+ (aq) + OH- (aq) ----> 2 H₂O (l)

From the equation above, 1 mole of hydroxide ions will neutralize one mole hydronium ions.

The moles of hydroxide ions present in 1 teaspoon or 5 mL of antacid product is calculated as follows:

Number of moles = mass / molar mass

Molar mass of Magnesium hydroxide, Mg(OH)₂ = 58 g/mol

Molar mass of aluminium hydroxide, Al(OH)₃ = 78 g/mol

Mass of magnesium hydroxide = 450 g = 0.45 g

Mass of aluminium hydroxide = 500 mg = 0.5 g

Moles of magnesium hydroxide = (0.45/58) moles

Moles of aluminium hydroxide = (0.5/78) moles

Equation of the ionization of magnesium hydroxide and aluminium hydroxide is given below:

Mg(OH)₂ (aq) ----> Mg²+ (aq) + 2 OH- (aq)

Al(OH)₃ (aq) ---> Al³+ (aq) + 3 OH- (aq)

Number of moles of hydroxide ions present in (0.45/58) moles of magnesium hydroxide = 2 × (0.45/58) moles = 0.0155 moles

Number of moles of hydroxide ions present in (0.5/78) moles of aluminium hydroxide = 3 × (0.5/78) moles = 0.0192 moles

Total moles of hydroxide ions = 0.0155 + 0.0192 = 0.0347 moles hydroxide ions

Therefore, 0.0347 moles of hydroxide ions will neutralize 0.0347 moles of hydronium ions.

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3 years ago
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