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2 years ago

The negatively charged particles of an atom are the

Chemistry

1 answer:

posledela2 years ago

3 0

Answer:

Electron: A negatively charged particle found circling or orbiting an atomic nucleus. An electron, like a proton is a charged particle, although opposite in sign, but unlike a proton, an electron has negligible atomic mass. Electrons contribute no atomic mass units to the total atomic weight of an atom.

Explanation:

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Organize the following species in terms

ser-zykov [4K]

Explanation:

F Cl Br

ionization energy decreases we move down the group
so Br<Cl<F

2. Na K Li

ionization energy decreases we move down the group
so K<Na<Li

3. C N O F

ionization energy increases as we move across the peroid
so C<N<O<F

plz mark as brainliest if it helps

6 0

3 years ago

A shiny, smooth piece of black plastic and an identical piece of white plastic are exposed to visible light and sound waves. Whi

Nana76 [90]

Answer:

The awnser is D

Explanation:

Since the black pieces absorb light better than white pieces, the white pieces will reflect light better. But since color doesn't affect sound, the sound waves are reflected the same.

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2 years ago

Two solids, A and B, are located in the same family on the periodic table. A sample of each is placed in a beaker of HCL. Substa

Vlad [161]

What do the bubbles indicate? chemical reaction with HCl, release of H2(g)

Where the substances are located in relation to one another on the periodic table and the activity series? A is above B on the periodic table but B is above A in the activity series.

The name of the family the substances could be in ? alkaline earth, alkali metals. Either group 1 or group 2.

What substance will have a larger atomic radius? B
What substance will have a larger ionization energy? A

4 0

2 years ago

Which one of the following best represents the predicted approximate chemical shift and coupling for the hydrogen(s) indicated w

melomori [17]

Answer:

The answer is quartet 2.40 ppm.

Note: Kindly find an attached image below for the part of the solution to this question

Sources: The image was researched from Course hero platform

Explanation:

Solution

Multiplicity or (n+1) rule:

It helps in determination of multiplicity of an individual proton or individual types of proton which are available in the molecule.

Multiplicity =(n+1)

Thus

The non equivalent protons which are attached from adjacent atom is denoted by n.

Now because there are three non-equivalent protons are present at adjacent carbon of methylene group, hence the multiplicity of methylene hydrogen is given as follows:

The multiplicity will be the same for the two hydrogen's. thus we compute multiplicity only for one hydrogen atom stated below:

Non- equivalent = 3

Multiplicity = (3 +1)

= 4

= Quartet for 2H

A quartet for 2H indicates that the hydrogen atoms attached from the carbon, which is attached one side from a methyl group and the other side form an atom that have no any hydrogens.

Now due +I effect of carbonyl group, chemical shift value is high for these two hydrogens which is exactly at 2.40 ppm or 2.40 Quartet.

5 0

3 years ago

Which of these is correct please help

mario62 [17]

Answer:

NH4+

Explanation:

NH4+ is the acid and NH3 is the base, so NH4+ is the stronger acid.

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2 years ago