Answer:
the last one
Explanation:
The activation energy for the forward reaction is the amount of free energy that must be added to go from the energy level of the reactants to the energy level of the transition state.
6.0 will the pH at the neutralization point of 0.00812 m Ba(OH)2 be when titrated with HCl.
<h3><u>What are </u><u>
titration reactions ?</u></h3>
A titrant/titrator, a standard solution with fixed volume and concentration, is prepared as part of the titration procedure. When an endpoint or equivalence point is reached, the titrant is made to continue reacting with the analyte, and at that point, the amount of titrant consumed may be used to calculate the analyte's concentration. Alternately, titration is the application of the stoichiometry principle to determine an unknown solution's concentration.
The technique begins by adding a very little quantity of analyte to a beaker or Erlenmeyer flask. Under a calibrated burette or chemical pipetting syringe containing the titrant, a little quantity of an indicator (such as phenolphthalein) is inserted.
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There is no transfer of energy in the reaction.
The question is incomplete as it does not have the options which has been provided in the attachment.
Answer:
1. sudden decrease
2. Respiratory alkalosis
Explanation:
Hyperventilation is a condition caused by the excess removal of the CO₂ from the blood which leads to the decrease in the pCO₂ of the arteries.
This decrease can cause fainting and death of the individual due to the malfunctioning of the body parts, especially the brain.
The decrease in the CO₂ amount of the blood causes the formation of bicarbonate and H⁺ ions which leads to respiratory alkalosis.
Therefore the selected options are correct.
Answer:
LITHIUM-ION.
Explanation:
ATOMIC STRUCTURE -
The smallest unit has the characteristics property of an element.
An atom consists of electron revolving around the nucleus in fixed orbits.
The Nucleus is a centrally located mass formed by the protons and the neutrons.
The atomic mass of an element is given as the sum of the protons and neutrons.
The Atomic number is equal to the number of protons or electrons.
In the given element element,
Atomic mass = 3 + 4 = 7
Atomic number = 3
As the number of protons in the atom is greater than the number of electrons by 1. Therefore, the element is a cation.
The element with atomic number 3 and atomic mas 7 is LITHIUM-ION.
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