Answer:
Kinetic energy is motion; it is the motion of waves, electrons, atoms, molecules, substances, and objects. Electrical energy is the movement of electrons.
Explanation:
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The molar enthalpy of combustion in kj/mol of magnesium is 620 kj/mol, Option D is the correct answer.
<h3>What is enthalpy of Combustion ?</h3>
The energy released when a fuel is oxidized by an oxidizing agent is called enthalpy of Combustion.
It is given that
a 1.0 g sample of magnesium is burned to form MgO. in doing so, 25.5 kj of energy are released.
Molecular weight of Magnesium = 24.35g
24.35 g makes 1 mole of Mg
1g = 1/24.35
For 0.04 moles 25.5 kJ is released
for 1 mole 25.5 *1/.04
= 620 kj/mol
Therefore the molar enthalpy of combustion in kj/mol of magnesium is 620 kj/mol.
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Explanation:
the free encyclopedia. Petrol additives increase petrol's octane rating or act as corrosion inhibitors or lubricants, thus allowing the use of higher compression ratios for greater efficiency and power. Types of additives include metal deactivators, corrosion inhibitors, oxygenates and antioxidants.
No because acid strength is determined by Ka, not the concentration of H₃O⁺.
<h3>
Briefly explained</h3>
While CH3COOH is a mild acid, HCL is a strong acid. Acetic acid will not be regarded as being as strong as hydrochloric acid, even though they create comparable numbers of H3O+ ions at various concentrations.
The acid's Ka determines the potency of the acid. HCL will dissociate more than CH3COOH at identical concentrations, according to the comparison.
<h3>
What is hydrochloric acid?</h3>
An aqueous solution of hydrogen chloride is what is known as hydrochloric acid, commonly referred to as muriatic acid. It has an unmistakably strong odour and is colourless. It is categorised as a powerful acid.
In the digestive tracts of the majority of animal species, including humans, it is a part of the stomach acid. A crucial industrial chemical and reagent for laboratories is hydrochloric acid.
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