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ludmilkaskok [199]
3 years ago
8

25. Why does increasing concentration usually increase reaction rate?

Chemistry
1 answer:
wlad13 [49]3 years ago
8 0

There are more particle collisions when increasing concentration. This causes an increase in reaction.

Hope this helps you!

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PLEASE NO GUESSES OR INCORRECT ANSWERS
sertanlavr [38]
Diffusion is the movement of any chemical from one place to another. 
Osmosis is the movement of water across a partially permeable membrane.


I hope this helps!
3 0
3 years ago
Ranjit titrates a sample 10.00 mL of Ba(OH)2 solution to the endpoint using 12.58 mL of 0.1023 M H2SO4.
julia-pushkina [17]

<u>Answer:</u> The concentration of Ba(OH)_2 comes out to be 0.129 M.

<u>Explanation:</u>

To calculate the concentration of base, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2SO_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ba(OH)_2

We are given:

n_1=2\\M_1=0.1023M\\V_1=12.58mL\\n_2=2\\M_2=?M\\V_2=10.00mL

Putting values in above equation, we get:

2\times 0.1023\times 12.58=2\times M_2\times 10.00\\\\M_2=0.129M

Hence, the concentration of Ba(OH)_2 comes out to be 0.129 M.

5 0
3 years ago
Using the equation below, calculate the percent yield of H3PO4 if an experiment that started with 12.98 grams of HCl and excess
ser-zykov [4K]
U are in my class because the teacher gave the same question I will tell aleveryone that you are cheat in g
7 0
3 years ago
Rutherford's research was primarily involved with: electron distribution defining the components of nuclei using electromagnetic
Nadya [2.5K]

Answer is: defining the components of nuclei.

Rutherford theorized that atoms have their charge concentrated in a very small nucleus.

This was famous Rutherford's Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles (helium atom particles, consist of two protons and two neutrons).  

Rutherford observed the deflection of alpha particles on the photographic film and notice that most of alpha particles passed straight through foil.

That is different from Plum Pudding model, because it shows that most of the atom is empty space.

Rutherford conducted research that led to the first splitting of the atom in a nuclear reaction.

4 0
2 years ago
What are 7 facts about Conduction?
Daniel [21]
Conduction, transfer of heat or electricity through a substance, resulting from a difference in temperature between different parts of the substance, in the case of heat, or from a difference in electric potential, in the case of electricity. Since heat is energy associated with the motions of the particles making up the substance, it is transferred by such motions, shifting from regions of higher temperature, where the particles are more energetic, to regions of lower temperature. The rate of heat flow between two regions is proportional to the temperature difference between them and the heat conductivity of the substance. In solids, the molecules themselves are bound and contribute to conduction of heat mainly by vibrating against neighboring molecules; a more important mechanism, however, is the migration of energetic free electrons through the solid. Metals, which have a high free-electron density, are good conductors of heat, while nonmetals, such as wood or glass, have few free electrons and do not conduct as well. Especially poor conductors, such as asbestos, have been used as insulators to impede heat flow (see insulation). Liquids and gases have their molecules farther apart and are generally poor conductors of heat. Conduction of electricity consists of the flow of charges as a result of an electromotive force, or potential difference. The rate of flow, i.e., the electric current, is proportional to the potential difference and to the electrical conductivity of the substance, which in turn depends on the nature of the substance, its cross-sectional area, and its temperature. In solids, electric current consists of a flow of electrons; as in the case of heat conduction, metals are better conductors of electricity because of their greater free-electron density, while nonmetals, such as rubber, are poor conductors and may be used as electrical insulators, or dielectrics. Increasing the cross-sectional area of a given conductor will increase the current because more electrons will be available for conduction. Increasing the temperature will inhibit conduction in a metal because the increased thermal motions of the electrons will tend to interfere with their regular flow in an electric current; in a nonmetal, however, an increase in temperature improves conduction because it frees more electrons.

4 0
3 years ago
Read 2 more answers
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