Explanation

Anisotropy is the property of being directionally dependent, meaning the substance behaves differently when measured along different directions, such as electrical conductivity.

Explanation

The p sub-shell does not exist in the first energy level (n=1). The first energy level only has an s sub-shell.

Explanation

The capacitance between two parallel charges sheets is dependent upon surface area and distance between the plates.

Capacitance of a parallel plate capacitor depends on the dielectric constant of the medium between the plates, area of each plate and distance between the plates.

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Explanation

The correct answer is: No change in composition

• A chemical change involves a transformation of one or more substances into new substances, which means a change in composition.

The signs of chemical change:

• Release of gas
• Change in color
• Change in temperature
• Change in smell
• Production of a new material

Explanation

• Atoms that gain electrons become negatively charged ions.
• These are known as Anions.

Explanation

The atomic mass (A) is the sum of protons and neutrons in the nucleus. In this case:

• Protons (Z) = 11
• Neutrons (N) = 12
• Atomic Mass (A) = Z + N = 11 + 12 = 23

Explanation

• In a saturated solution, the solvent has dissolved the maximum amount of solute possible under the given conditions.
• It leading to equilibrium between the dissolved and undissolved solute.

Explanation

• Lemon juice, which is primarily liquid, dissolves in water, another liquid, creating a liquid-liquid solution.
• Where both solute (lemon juice) and solvent (water) are in liquid form.

Explanation

The particles in a gas have the following characteristics:

• They move randomly, with no fixed pattern or direction
• They have unlimited space to move, as there are no boundaries or restrictions
• They move freely in any direction, without any obstacles or barriers
• They can travel long distances, as there are no constraints on their movement

Explanation

Increasing the proportion of reactants which have enough energy to overcome the activation energy: At a higher temperatures, more reactants have enough energy to overcome the activation energy. This increases the frequency of successful collisions so the rate increases.