How does the kinetic theory of gases explain the weather changes happening in the troposphere?

An electric motor is a machine that is responsible for conversion of electricalenergy to mechanical energy. On the other hand a galvanometer is an electrical tool that is used to measures small values of current.

What is a galvanometer?

A galvanometer actually works by deflecting a pointer in an electric current response which is flowing through a coil under a constant magnetic field.

While an electric motor  performs its operation through the interaction between the magneticfield of motor and electriccurrent in a wire winding which generate a force in the form of torque.

Thus, this was the difference between a galvanometer and an electricmotor.

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A 12.5-g marble display 5.0 mL of water. The density is 2.5 g/ ml.

What is density?

Density is defined as a measurement of how tightly packed the mass is within a substance or object. The concept of density is crucial because it enables us to predict which compounds will float and which ones will sink in a liquid. As a rule, objects float as long as their density is lower than the liquid they are placed in.

The density of a substance is determined by the mass, size, and arrangement of its atoms. Density is calculated by dividing a substance's mass by its volume.

Density = Mass / Volume

Given Mass = 12.5 g

Volume = 5.0 ml.

Density = 12.5 g / 5.0 ml

Density = 2.5 g / ml

Thus, a 12.5-g marble display 5.0 mL of water. The density is 2.5 g/ ml.

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The mass of 3.0 x 10^23 atoms of neon would be 10.09 g

According to Avogadro;

1 mole of neon would have 6.022 x 10^23 atoms

3.0 x 10^23 atoms of neon would have:

            3.0 x 10^23/6.022 x 10^23

                                         = 0.5 moles

mass of 0.5 moles neon = mole x molar mass

                                            = 0.5 x 20.18

                                             = 10.09 g

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Answer: The mass of neon for the given number of atoms will be 9.8 g.

Explanation:

We are given:

Number of neon atoms =

According to the mole concept:

number of atoms. are occupied in 1 mole of a substance.

So, will be occupied in =

To calculate the number of moles, we use the equation:

Moles of Neon = 0.49 moles

Molar mass of neon = 20 g/mol

Putting values in above equation, we get:

Hence, the mass of neon for the given number of atoms will be 0.49g.

Answer: False

Explanation:

Metal oxides that dissolve in water, react with water to form basic solutions.

Nonmetal oxides react with water to form acidic solutions.

Final answer:

False. The nature of the solution actually depends on the type of metal oxide. Not all metal oxides will make water acidic when mixed.

Explanation:

The statement that mixing metal oxide with water will result in an acidic solution is generally false.

Actually, the nature of the solution (acidic, basic, or neutral) after mixing metal oxide with water depends on the type of metal oxide. Some metal oxides, particularly those of alkali metals and alkaline earth metals (Group 1 and 2 in the Periodic Table), form basic solutions when dissolved in water. For instance, sodium oxide or magnesium oxide will react with water to form their respective hydroxides, which are basic in nature.

However, certain metal oxides like aluminum oxide or zinc oxide may react with water to form amphoteric solutions (can behave as both acids and bases).

Thus, not all metal oxides will make the water acidic when mixed.

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