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3 years ago

If the mass of monomer 105 atomic mass units, find the mass of a polymer contianing 122 monomers

1 answer:

3 0

12810 atomic mass units
Since a monomer is the basic building block of a polymer, we just need to multiply the mass of the monomers by the number of monomers used. So 105 atomic mass units * 122 = 12810 atomic mass units

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Would you classify the atoms in the table as pure substances?

ivann1987 [24]

Answer:

Yes

Explanation:

Atoms are generally classified as pure substances. A pure substance has the following properties:

All parts are the same throughout i.e. homogeneous
They have definite composition
The cannot easily be broken down into simpler substances by physical means.
Separation by physical methods is not easy.
They have unique sets of physical properties.

Elements and compounds are generally classified as pure substances. Since atoms are the building blocks of pure substances, they can be classified as one.

3 0

3 years ago

All the following ions have the same charge except Group of answer choices oxide. monohydrogen phosphate. peroxide. permanganate

Triss [41]

All the given species have the same charge except peroxide.

<h3>Charges on ions</h3>

The charge on monohydrogen phosphate is negative because of its formula, $[HPO4]^{2-}$ .

The charge on permanganate is negative. The formula is $MnO^-$

The charge of oxide ( $O^{2-}$ ) is negative.

The charge on peroxide is ( R−O−O−R) is neutral.

The charge on oxalate, $C2O4^{2-}$ , is negative.

Thus, only peroxide is unique.

More on charges on ions can be found here: brainly.com/question/11938054

#SPJ3

4 0

2 years ago

What is the volume of the liquid in the graduated cylinder shown below?

lara31 [8.8K]

Answer:27% According to the cylinder.

5 0

3 years ago

Read 2 more answers

which nonmetals could form an ionic compound with the formula MgX^2 ( where X represents the nonmetal)? (possible, not possible)

djverab [1.8K]

Answer:

The answer to your question is:

Explanation:

Ionic compound is formed when a metal and a nonmetal are attached.

If we have MgX₂, that means that the nonmetal must have a valence of -1.

From the list the nonmetals with a valence of -1 are:

Bromine(Br) and fluorine(F).

7 0

4 years ago

How many different principal quantum numbers can be found in the ground-state electron configuration of nickel?A) 2.B) 3.C) 4.D)

Naddik [55]

Answer:

C) 4.

Explanation:

Hello!

In this case, since the electron configuration of nickel at its ground-state, considering 28 as its atomic number and the number of electrons it has in one atom, is:

$Ni^{28}:1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^8$

We can see it has four energy levels, 1, 2, 3 and 4, which are related to the following principal quantum number, that describes the energy of an electron in the atom and its most probable distance with respect to the nucleus.

Therefore, nickel has C) 4 different principal quantum numbers.

Best regards!

5 0

3 years ago