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2 years ago

What is the main difference between protons and neutrons?

Chemistry

1 answer:

Lorico [155]2 years ago

8 0

Answer:

Protons have a much larger volume than neutrons.

Explanation:

Protons have a slightly smaller mass than neutrons.

Protons have a positive charge.

Protons and neutrons make up the nucleus.

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What is the density of a sample of the alloy pewter, (a mixture of tin and copper or lead) if a 7.11 cm3 sample has a mass of 53

xxTIMURxx [149]

Answer:

<h3>The answer is 7.47 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 53.137 g

volume = 7.11 cm³

We have

$density = \frac{53.137}{7.11} \\ = 7.473558368...$

We have the final answer as

Hope this helps you

5 0

3 years ago

Classify the following items based on the type of polymer they are made from: raincoats and leather shoes.

Karolina [17]

In order to clasify these based on the type of polymer they are made from, we can say that B. <span>Leather shoes are made from natural polymers; raincoats are made from synthetic polymers, is the most accurate option from the ones you are giving me. Hope this is useful</span>

5 0

2 years ago

PLEASE HELP ME !!!!

labwork [276]

Answer:

electrons..............

3 0

2 years ago

What type(s) of intermolecular forces are expected between ch3ch2ch2ch2ch2oh molecules?

notka56 [123]

Answer : Hydrogen-bonding, Dipole-dipole attraction and London-dispersion force.

Explanation :

The given molecule is, $CH_3CH_2CH_2CH_2CH_2OH$

Three types of inter-molecular forces are present in this molecule which are Hydrogen-bonding, Dipole-dipole attraction and London-dispersion force.

Hydrogen-bonding : when the partial positive end of hydrogen is bonded with the partial negative end of another molecule like, oxygen, nitrogen, etc.

Dipole-dipole attraction : When the partial positively charged part of the molecule is interact with the partial negatively charged part of the molecule. For example : In case of HCl.

London-dispersion force : This force is present in all type of molecule whether it is a polar or non-polar, ionic or covalent. For example : In case of Br-Br , F-F, etc

Hydrogen-bonding is present between the oxygen and hydrogen molecule.

Dipole-dipole forces is present between the carbon and oxygen molecule.

London-dispersion forces is present between the carbon and carbon molecule.

5 0

3 years ago

You would expect a phosphorous-chlorine bond to be

zlopas [31]

Answer: option 4. polar, with the chlorine end having a partial negative charge.

Explanation:

1) A polar bond is a covalent bond in which the electrons are pulled more strongly by one of the atoms and then they are not evely distributed between the two linked atoms.

2) That happens when the two atoms have diferent electronegativities.

3) As the per periodic table trend of the electronegativity, you can predict that the electronetativity of Cl is higher than that of P.

In fact, in a table of electronegativities you can find that the electronegativity of Cl is 3.16 while the electronegativity of P is 2.19.

This is a 3.16 - 2.19 = 0.97 difference.

As explained, that difference means that Cl will pull the electrons more strongly resulting if a partial negative charge on Cl and a partial positive charge on P, i.e. a polar bond.

4 0

3 years ago

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