How did Rutherford's experimental evidence lead to the development of a new atomic model?

Answers

Answer 1

Answer: In his Gold Foil experiment, few particles were deflected strongly, where as he thought all particles will go straight through the foil (some did though, which are called electrons.) J. J. Thompson, Rutherford's former teacher, proposed that if there are negative charge particles (he named them electrons), there must also be a positive charge particles; Rutherford proved his theory right, and he called the positive charge protons. He also found that inside the atom, there must be a positive charge that is clustered in a tiny region in its center, which is called the nucleus.

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(see the picture attached) i need to make notes about balancing chemical equations, can anyone give a basic explanation please?
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What is a solution?what is the solvent of a solution
Look at the diagram below.The diagram on the left represents ______. The diagram on the right represents ______.A. the specific heat of a system; the heat of vaporization of a liquidB. the release of heat by a system; the absorption of heat by a systemC. the absorption of heat by a system; the release of heat by a systemD. the heat of vaporization of a liquid; the specific heat of a system
In this reaction, how many grams of O2 are required to completely react with 110 grams of Al

What is a Fahrenheit??

Answers

Fahrenheit is a temperature scale

One of many temperature scales

I’m trying to learn molarity problems on my own (online schooling is terrible), I don’t need the answer for the following problem as much as I need the process of solving it explainedHow many L of solution are present if 100g NaCl has been dissolved in water to make a 2.50M solution?

Answers

Answer:

0.68L

Explanation:

First, let us calculate the number of mole in 100g of NaCl. This is illustrated below:

Molar Mass of NaCl = 23 + 35.5 = 58.5g/mol

Mass of NaCl = 100g

Number of mole of NaCl =?

Number of mole = Mass/Molar Mass

Number of mole of NaCl = 100/58.5

Number of mole of NaCl = 1.709 mole

Now we can find the volume of the solution as follow:

Mole = 1.709 mole

Molarity = 2.50M

Volume =?

Molarity = mole /Volume

Volume = mole /Molarity

Volume = 1.709/2.5

Volume = 0.68L

If a gas A is 9 times as heavy as hydrogen,which will diffuse faster and by what factor?

Answers

I know gas will diffuse faster

Which of the following best describes how attractive forces of the molecules in a solid compared to a liquid?A)The attractive forces are the same in a solid and liquid
B) The attractive forces are stronger in a liquid
C) The attractive forces are stronger in a solid
D)The attractive forces of a solid allow the particle to move freely while the liquid molecules vibrate around a fixed point

Answers

Answer:

Option-C (The attractive forces are stronger in a solid)

Explanation:

The substance either exist as a Solid or Liquid depends upon on the following two factors;

ii) Kinetic Energy:

Greater the K.E of particles, greater will be the distance between the particles of a substance. In Liquids the K.E of particles is greater than the K.E of particles in Solid. Hence, the Liquid Particles separated by greater distance as compared to particles of Solids.

ii) Attractive Intermolecular Forces:

Greater the Attractive Intermolecular Forces between the particles of a substance, smaller will be the distance between the particles. As the distance between the particles in Solid state of substance are very small as compared to that of Liquids hence, it can be concluded that the Attractive Intermolecular Forces in Solids are stronger than Liquids.

Plants don't move around, so why do they need energy?

Answers

Every organism needs the energy to carry out a number of different processes, such as growth and reproduction. The energy is necessary for different metabolic processes and reactions inside the cells. Plants do not move around, so they don't need energy for movement, but they need the energy to develop, to grow, to produce food, to reproduce, and many other processes.

Plants need energy for Reproduction, Photosynthesis, Growth, and Development amongst others.

Required Energy in Plants

To produce their own food energy, which is referred to as "photosynthesis," plants need water and sunlight. They need energy because they are living things.

Photosynthesis is the process by which plants turn solar energy into sugar. Light energy is utilized by photosynthesis to transform carbon dioxide and water.

Numerous biological functions, such as growth and reproduction, require energy. Therefore, energy is absolutely essential.

Learn more about Energy in Plants here:

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In a _______ mixture, the ingredients are distributed evenly throughout the mixture, while in a _______ mixture, the ingredients are unevenly distributed throughout.heterogeneous; homogeneous
heterozygous; homozygous
homozygous; heterozygous
homogeneous; heterogeneous

Answers

In a homogeneous mixture, the ingredients are distributed evenly throughout the mixture, while in a heterogeneous mixture, the ingredients are unevenly distributed.

The correct answer choice is the fourth one. You know this because you can eliminate the second and third choices since homozygous and heterozygous are terms more commonly used in genetics. And you can eliminate the first one because a homogenous mixture is more like a solution, where it is blended to where it looks like one substance. For example, pudding would be a homogenous mixture. So, homogeneous has to be in the first blank.

Answer:

homogeneous; heterogeneous

Explanation:

because It is the right answer

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