draw the product of the sn2 reaction and indicate stereochemistry. write the inorganic product in the answer palette.

Answer:

Explanation:

It is necessary to run TLC in a closed container and have the interior saturated with the solvent vapor to ensure maximum resolution between components and to prevent solvent evaporating off. If the solvent evaporates off, the Rf value would be lower than the expected value.

Answer:

A push or pull is referred to as a force. Forces can cause objects to move, slow, stop, or change the direction in which they travel. The force of gravity, for example, pulls all objects toward the Earth's center. Every time two things interact, a force is exerted on each of them. When this happens, the two items no longer feel the force after the interaction ends.

Explanation:

Force is that external physical cause which changes or tends to change:

hope this helps you.

The characteristics of the Bohr model allow you to find that the correct answer for the distribution of particles in the atom is:

   b) Ten protons would be located in the nucleus, and 10 electrons would be on the outside of the atom orbiting in rings.

The bohr model was initially developed for hydrogen, where it manages to fully explain the spectrum of the hydrogen atom, it was quickly spread to other multi-electronic atoms with the characteristic of having a single electron in their last orbit.

The extension to atoms with more than one electron in the last shell the model results are not completely correct.

The Bohr model uses Rutherford's knowledge that the atomic nucleus is a very small part of an atom that contains all its mass, that is, it contains the protons and neutrons and the electrons are in circular orbits around the nucleus.

In the case presented of Neon, its electronic configuration is

    1s² 2s² 2p⁶

Let's examine the different claims:

a) False. Protons and neutrons form the mass of the atom, therefore they are both in the nucleus.

b) True. The protons are in the nucleus and the electrons are in circular orbits.

c) False. All protons and neutrons must be in the nucleus, plus neon only has 10 neutrons.

c) False. The number of protons determines the type of atom. An atom with twenty protons is Calcium atom .

In conclusion, using the characteristics of the Bohr model we can find that the correct answer for the distribution of particles in the atom is:

  b) Ten protons would be located in the nucleus, and 10 electrons would be on the outside of the atom orbiting in rings.

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Scientists can use the table to analyze reactivity among elements, predict chemical reactions, understand trends in periodic properties among different elements and speculate on the properties of those yet to be discovered. 

[tex]\textbf{Question:-}[/tex]

Why it is important to have balanced charges when forming ionic compounds?

✿[tex]\textbf{Answer:-}[/tex]

✿[tex]\textbf{More to know:-}[/tex]

Answer:

A homologous series is a series of compounds with the same general formula, usually varying by a single parameter such as the length of a carbon chain. Compounds within a homologous series typically have a fixed set of functional groups that gives them similar chemical and physical properties.

Answer:

Boyles law

Explanation:

I think that is combined gas law.

Explanation:

1 literThe total of water is equal to 1000.0 g of water

we need to find the molality of a solution containing 10.0 g of dissolved in  Na₂S0₄1000.0 g of water

1. For that find the molar mass

Na:  2 x 22.99= 45.98

S:  32.07

O:  4 x 16= 64

The total molar mass is 142.05

We have to find the number of moles, y

To find the number of moles divide 10.0g by 142.05 g/mol.

So the number of moles is 0.0704 moles.

For the molarity, you need the number of moles divided by the volume. So, 0.0704 mol/1 L.

The molarity would end up being 0.0704 M

The molality of a solution containing 10.0 g of Na2SO4 dissolved in 1000.0 g of water is  0.0704 Mliter

Answer:

Because combustion is a chemical change and not a physical change. Do, flammable and combustible gases burn and change into new substance.

As opposed to a physical change, combustion is a chemical transformation. Combustible and flammable gases do burn and transform into new substances.

Combustible materials are those that, when exposed to fire or heat, will ignite, burn, sustain combustion, or produce flammable gases in the form and circumstances anticipated for their application. Combustible materials include rubber, plastics, rubberized materials, and wood.

Depending on the environmental factors, most metals are flammable to varied degrees. With water, acids, and other chemicals, certain metals can react in ways that are hazardous. Some metals can spontaneously ignite and heat up.

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#SPJ2

Answer:

2689.4

Explanation:

Answer:

Using a hypothesis to sell a new product.

Answer:

I believe the answer is II and III

Explanation:

I'm not sure if III is right cause I cannot read the last word but I think it's OK.

Hope this helped :)

Answer:

A chemical reaction is a process where two different substances or elements are mixed together. They then undergo some sort of chemical change to become a different substance altogether.

Explanation:

Answer:

Option a

Explanation:

simple

Answer:

The two solutions do not react with each other unless the water is boiled off, then the two will decompose.

Explanation:

Answer: b

Explanation:

Magnesium (group IIA) loses two electrons to become a cation. This is the most energetically favorable way for Magnesium to obtain a valence electron that is stable (octet). When an atom loses electrons it has a positive charge that matches the number of electrons lost.

Nitrogen (group VA) gains three electrons to become an anion. This is the most energetically favorable way for Nitrogen to obtain a valence electron that is stable (octet). When an atom gains electrons it has a negative charge that matches the number of electrons gained.

Answer:

1. Ar, Cl, Al, Mg, Na

2. O, S, Se, Te, Po

Explanation:

Just remember the trends. From left to right, atomic radius decreases because proton increases and pulls electrons closer. From top to bottom, atomic radius increases because there are more electron shells.

Answer:

Random errors will shift each measurement from its true value by a random amount and in a random direction. These will affect reliability (since they're random) but may not affect the overall accuracy of a result.

Answer:

alpha decay

Explanation:

an unstable element is radioactive in nature.

Polonium is a chemical element with a large, unstable nucleus.

the most stable isotope of Polonium is Polonium-209, which typically undergoes an alpha decay to form lead-205 and the emission of an alpha particle.

1. Polonium has a large, unstable nucleus. Through which process is it most likely to become stable?

alpha decay

2. Which type of energy does alpha decay generate?

kinetic

3. Use the equation to answer the question.

14 6C→14 7N+ 0−1e

Which type of radioactive decay does the equation model?

beta-minus decay

4. How does the nucleus change in beta-plus decay?

The mass number remains the same, and the atomic number decreases by one

5. An unstable nucleus undergoes gamma decay. How does the nucleus change?

It becomes more stable by repositioning its particles

Explanation: I did the test

Answer:

CYTOPLASM

Explanation:

MOST REACTION REQUIRE WATER TO OCCUR

SINCE ENZYME WORK BEST WHEN DISSOLVED IN WATER

WATER IS PRESENT IN CYTPLASM HENCE IT IS MAIN SITE OF MEABLIC REACTIONS

Answer:

262.5 Joules

Explanation:

You find the kinetic energy of multiplying half of the mass by the velocity. In this word problem it tells you the mass so you divide it by 2. That answer is 2.625, you then multiply that by the velocity, in this instance it's 1.0 x 10^2 mi/h.

The unit in kinetic energy is Joules. This is actually a really important part in chemistry and physics.

The kinetic energy of a baseball (mass = 5.25 oz) with a velocity of 1.0×10² mi/h is 147.88 joules.

Kinetic energy of any object will be calculated by using the below equation:

K.E. = 1/2(mv)², where

m = mass of object in kg = 5.25 oz = 0.148 kg

v = velocity in m/sec = 1.0×10² mi/h = 160934 m/h = 44.704 m/s

On putting values on the above equation, we get

K.E. =1/2(0.148)(44.704)²

K.E. = 147.88 joules

Hence required kinetic enrgy is 147.88 joules.

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Answer:

I believe Cobalt is a Transition Metal.

Answer:

answer is transition metal

Answer:

The lower the pressure, the lower a liquid's boiling point is. That's why water boils much faster at the top of a mountain than it does at the bottom. In space, there is no pressure. So the boiling point could easily drop to your body temperature.

mark as a brainlist plz.

Answer:

Kelvin

Explanation:

The most likely ion of Phosphorous is P³⁻ (group 15) since gaining three electrons is the most energetically favorable way for it to follow the octet rule.

Because the charge on ions is equivalent to their oxidation state, then -3 is the most likely oxidation number of Phosphorous.

The answer would be C8H18, or octane. Column chromatography is a separation technique that works off of polarity. The stationary phase, in column chromatography, are non-modified silica gels. Silica gels are normally polar. This means the solvent that will elute first are non-polar molecules...then polar molecules. The polar silica gels have a stronger interaction with polar molecules like CH3OH, and therefore will lag the solvent. Additionally, as you decrease the carbons, in hydrocarbons, the molecule becomes more polar. This is not C6H6 isn't the answer and octane is.

C8H18 will travel the farthest in column chromatography.

There are different forms of chromatography. there is the column chromatography, Gas chromatography etc.

Alkanes are known to be least polar and as such would travel farthest into the mobile phase of the four functional groups. C8H18 belongs to the alkanes family.

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Answer:

Dmitri Mendeleev

Explanation: