The invisible electric force field around charged objects depends on the amount of charge, distance involved, and shape of the objects.
The formation of charged matter is depends on the transfer of electrons, either within a material or between two materials. There are three ways this can occur are known as conduction, polarization, and friction.
Charged objects surround themselves with an imperceptible electric force field. The charge, distance, and shape of the items are only a few of the factors that affect strong field.
The electric charge on the particles and the separation between them determine the strength of the electric force. Greater force is produced by larger charges.
Thus, The invisible electric force field around charged objects depends on the amount of charge, distance involved, and shape of the objects.
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B. the Italian Revolution
C. the Haitian Revolution
D. the Columbian Revolution
Answer:
The Correct Answer is C
The Haitian Revolution
Explanation:
b) Alkali metals; Noble gases
c) Noble gases; Alkali metals
The group with the highest ionization energy is(option c) noble gases due to their full electron shell, making it difficult to remove an electron. The group with the lowest ionization energy is(option c) alkali metals because they have only one electron in their outermost shell, which can be easily removed.
The answer to the question is (c) Noble gases; Alkali metals. Ionization energy is the energy required to remove an electron from an atom or ion. A higher ionization energy means it is harder to remove an electron.
Noble gases have the highest ionization energies because they have a full electron shell, so they do not readily give up an electron. On the other hand, alkali metals have the lowest ionization energy, because they have only one electron in their outer shell, which is relatively easy to remove.
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is an example of two-phase mixture and this can be separated by .
Further explanation:
Mixture:
The material that is made up of two or more substances is called a mixture. It has no fixed formula and its composition is also varied. All the individual constituents retain their properties after the formation of the mixture.
Types of mixtures:
1. Homogeneous mixtures
Homogeneous is a Latin word that means the same. These mixtures have a uniform composition throughout. These types of mixtures consist of a single phase only. Air, orange juice and blood are the examples of a homogenous mixture.
2. Heterogeneous mixtures
Heterogeneous is a Latin word that means different. These mixtures that have non-uniform composition throughout. These mixtures have more than one phase. Concrete, soda and chocolate chip cookies are the examples of a heterogeneous mixture.
Characteristics of mixtures:
1. It has a variable composition and has no formula.
2. Mixtures are not formed by any chemical reactions.
3. Mixtures can be either homogeneous or heterogeneous.
4. The constituents of the mixtures can be separated by physical methods such as filtration, heating, drying, distillation, crystallization.
5. The properties of the individual particles of the mixture are retained even after the formation of mixtures.
A mixture of sand and water is an example of a two-phase mixture. Here sand is a solid whereas water is a liquid. The components of the mixture are separated by filtration. Sand will remain on the surface of filter paper while water passes through it.
Learn more:
1. Characteristics of a mixture: brainly.com/question/1917079
2. Example of physical change: brainly.com/question/1119909
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Elements, compounds, and mixtures
Keywords: mixture, characteristics, formula, composition, properties, chemical reactions, filtration, distillation, heating, crystallization, homogeneous, heterogeneous, solid, liquid, sand, water, filter paper.
Answer : The percent yield of is, 68.4 %
Solution : Given,
Mass of = 0.16 g
Mass of = 0.84 g
Molar mass of = 16 g/mole
Molar mass of = 32 g/mole
Molar mass of = 44 g/mole
First we have to calculate the moles of and .
Now we have to calculate the limiting and excess reagent.
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 2 mole of react with 1 mole of
So, 0.026 moles of react with moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of
From the reaction, we conclude that
As, 2 mole of react to give 1 mole of
So, 0.026 moles of react to give moles of
Now we have to calculate the mass of
Theoretical yield of = 0.572 g
Experimental yield of = 0.391 g
Now we have to calculate the percent yield of
Therefore, the percent yield of is, 68.4 %
Answer: the reactant left in excess is H₂, and the amount of excess H₂ is 4.5 moles - 3 moles = 1.5 moles.
Explanation: Moles of N₂ = mass of N₂ / molar mass of N₂
Moles of N₂ = 56 g / 28 g/mol = 2 moles
Moles of H₂ = mass of H₂ / molar mass of H₂
Moles of H₂ = 9 g / 2 g/mol = 4.5 moles