Answer:
See explanation
Explanation:
Acids and bases contain ions that interact with water. According to the Arrhenius definition, acids are substances that produce hydrogen ion in water while bases are substances that produce hydroxide ion in water.
The pH scale is a graphic description of the hydrogen or hydroxide ion present in a sample. Since pH= -log[H^+], the higher the pH , the lower the hydrogen ion concentration and vice versa.
Similarly, pOH= -log [OH^-] , hence the more the OH^- concentration the lower the pOH.
However pH + pOH =14.
Thus the concentration of hydrogen or hydroxide ions present determines the pH of any solution.
Broad internalism, conventionalism, pluralistic internalism
<u>Question:</u>
Two particles are separated by a distance d. At this distance, the strong interaction between them is much greater than the electrical interaction. What are the possible values of d?
a. extremely large values, such as the distances between the planets and sun
b. extremely small values, such as the distances between particles in an atomic nucleus
c. values between 1 mm and 1 m
d. values between 1 m and 1 km
<u>Answer:
</u>
The possible values of d are extremely small values, such as the distances between particles in an atomic nucleus.
<u>Explanation:
</u>
Any kind of interaction requires force between the interacting materials and that force tends to directly proportional to the product of mass of the materials and inversely proportionate to distance of separation of the interacting materials.
So, mostly based on the distance of separations, an interaction can be termed as strong or weak interactions. If the interacting particles are placed at higher distance, then the force acting between them tend to decrease leading to weak interaction.
An interaction stronger than electrical interactions can occur within subatomic particles. This leads to binding of the subatomic particles as an atom. So the distance d should be extremely small in subatomic particles like distance between the particles in an atomic nucleus.
Answer:
MgO
Explanation:
A magnesium ion has a charge of +2 and an oxygen ion has a charge of –2.
Molecule made by ions is neutral . In case of Magnesium oxide molecule it is possible only when on magnesium ion and one oxide ion join together to form molecule . The total charge of molecule will be + 2 - 2 = 0 . In this way molecule formed becomes neutral . Hence formula of magnesium oxide is
MgO .