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Molarity of the solution is 5.8M

        moles of solute (n) = 1.45      

        Volume of solution (V) = 250 ml

Molarity of a solution is defined as the number of moles of the solute dissolved per litre of the solution. It is represented as M . Thus a solution, which contains one gram mole of the the solution dissolved per litre of the solution is regarded as .

M = n of solute  / Vol (L)

    =  [tex]\frac{1.45 * 1000}{100 * 250}[/tex] = 5.8 M

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Answer:

The gold foil experiment

El experimento de la lámina de oro

Explanation:

Answer:

the answe would be (c) temperate continental

Explanation:

Answer:

5.1 mol

Explanation:

Silver's molar mass is 107.8682

550/107.8682=5.09881503539

Or if you round it's = 5.1

Answer:

5.0

Explanation:

https://www.convertunits.com/from/grams+Silver/to/moles

this is what I used, this maybe be useful later.

Explanation:

The triceps contract to allows the arm to extend and flex while throwing

Answer:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Answer:

Supply the body with Oxygen

Explanation:

The respiratory system helps remove waste gases and help you breath

(Your respiratory system consists of your lungs, mouth, and windpipe)

Answer:

Because organism is made up of organs

organs are made up of tissues

tissues are made up of cells

Therefore interaction of cells give outcome to tissue which further show's results in organs and to organ system and then to the body as a whole

Explanation:

Reason:- The Mechanism of Diffusion In the case of food coloring in water, the water is the solvent while the food coloring is the solute. Once they've mixed, they make a solution. Diffusion takes time, though how much time depends on the kinetic energy of the molecules randomly bouncing among each other.

Answer:

Final pressure = 362.7 Pa

Explanation:

Given that,

Initial volume, V₁ = 930 ml

Initial pressure P₁ = 156 Pa

Final volume, V₂ = 400 mL

We need to find the final pressure. We know that the relation between volume and pressure is inverse i.e.

[tex]V\propto \dfrac{1}{P}\\\\\dfrac{V_1}{V_2}=\dfrac{P_2}{P_1}\\\\P_2=\dfrac{V_1P_1}{V_2}\\\\P_2=\dfrac{930\times 156}{400}\\\\P_2=362.7\ Pa[/tex]

So, the final pressure is equal to 362.7 Pa.

Explanation:

The electron configuration for the first row transition metals consists of 4s and 3d subshells with an argon (noble gas) core. This only applies to the first row transition metals, adjustments will be necessary when writing the electron configuration for the other rows of transition metals.

Answer:

D

Explanation:

In the Rb atom the valence electron is farther from its nucleus than the valence electron of Li is from its nucleus

Answer:

A few years back I back in 8th grade I head somewhat of a scream underwater, at first I was amazed at the sound but I suddenly realized how physically possible, the only way to make noise under water is to breath in the water and that can drown you, as I heard this I almost immeaditetly bolted out of the water and saw someone either trying to destroy their lungs themselves or being uneducated, they ended up stopping after a bunch of people started staring at them.

Explanation:

Answer:

A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.

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Answer:

6.25 gram

Explanation:

Applying,

R = R'([tex]2^{a/n}[/tex])................ Equation 1

Where R = Original mass of the isotope, R' = mass of the isotope left after disintegration, a = Total time, n = half life.

make R' the subject of the equation

R' = R/([tex]2^{a/n}[/tex])................. Equation 2

From the question,

Given: R = 100 gram, a = 20 munites, n = 5 minutes.

Substitute these values into equation 2

R' = 100/([tex]2^{20/5}[/tex])

R' = 100/[tex]2^{4}[/tex]

R' = 100/16

R' = 6.25 gram

Answer:

Decrease

Explanation:

Since the speed in which the gas molecules are faster as they are heated, they fly around in the container and logically, it is harder to insert a moving object into water than something more stationary or slower.

Answer:

D C4H28

Explanation:

Answer:

D) 6

Explanation:

The balanced equation would be:

6Li + N2 -> 2Li3N

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. Therefore, the correct option is option D.

Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, displacement reaction.

The other characteristic of balanced reaction is that physical state should be written with each compound or molecule on reactant and product side. Physical state should be written in brackets. s means solid, l means liquid, g means gas.

The skeletal equation is

Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] Li[tex]_3[/tex]N

The number of atoms of nitrogen on reactant side is 2 while on product side it is 1 so to balance

Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N

The lithium atom on reactant side is 1 while on product side it is 6,  so to balance

6Li + N[tex]_2[/tex] [tex]\rightarrow[/tex] 2Li[tex]_3[/tex]N

The coefficient of the Lithium is 6.

Therefore, the correct option is option D.

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Answer:

Explanation:

Answer:

Solutions can be solids dissolved in liquids. When you work with chemistry or even cook in your kitchen, you will usually be dissolving solids into liquids. Solutions can also be gases dissolved in liquids, such as carbonated water. There can also be gases in other gases and liquids in liquids.

Explanation:

Answer:

Red

Explanation:

Answer:

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Explanation:

Most hydrogen atoms have a nucleus with only a single proton. About 1 in 10,000 hydrogen nuclei, however, also has a neutron; this particular isotope is called deuterium. An extremely rare hydrogen isotope, tritium, has 1 proton and 2 neutrons in its nucleus. ... Most hydrogen atoms have only a proton in the nucleus

Answer:

As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.

Explanation:

Answer:

both the substances will evaporate

Explanation:

Answer:

If a soil test indicates low magnesium, dolomitic limestone can be used to correct both the nutrient deficiency and pH. The value of limestone is in its ability to neutralize soil acidity. Limestone's properties differ considerably, and these differences influence the limestone's ability to neutralize soil acidity.

Explanation:

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Answer:

It is given that the mass of a man is 75 Kg in earth. Then his mass would be same in moon as mass of anything cannot be changed. The weight of the man in earth can be calculated by W=mg=75×9.8=735 N.

Answer:

C The water accepts a proton from the hydrogen chloride.

Explanation:

The equation given in this question where hydrogen chloride reacts with water is as follows:

HCI + H2O → CI- + H3O+

From this equation, hydrogen chloride (HCl) loses or donates hydrogen ion (H+) or proton to water (H2O), which accepts it to become hydronium ion. Hence, in a nutshell, water (H2O) accepts a proton (H+) from the hydrogen chloride (HCl) in this reaction.

Answer:

No 1 is fission

while no 2 is fusion

Fission is splitting on nucleus while fusion is forming heavier nucleus with nuclei

The kind of nuclear reaction that occurs in the following reactions are:

i. nuclear fission

ii. nuclear fusion.

Nuclear reactions are that reactions in which a nucleus or nuclei collides with subatomic particles to form another, different nucleus. There are two types of collisions. Nuclear fission and nuclear fusion.

Nuclear fission is a process when large nuclei split and create small, numerous nuclei. It happens due to the instability of an atom. It split into two daughter nuclei.

Nuclear fusion is a process in which two or more small nuclei combine to create a large, heavy nucleus. The process releases a large amount of energy or can be absorbed.

Thus, the processes are i. nuclear fission

ii. nuclear fusion.

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