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4 years ago

Why does an ion have an electrical charge?

1 answer:

3 0

An ion has an electrical charge because it either has more electrons than protons or it has more protons than electrons. Electrons, which are found in the shells of an atom, have a negative charge, while protons, found in the atom's nucleus, have a positive charge.

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An ideal gas in a closed container initially has a volume V and Temperature T the final tempera is 5/4T and the final pressure i

Anettt [7]

Answer:

$V_2 = \frac{5V}{8}$

Explanation:

I am assuming you are saying what is the final volume of the gas

Known :

Initial volume (V1) = V

Initial temperature (T1) = T

Final temperature (T2) = 5/4 T

Initial pressure (P1) = P

Final pressure (P2) = 2P

Wanted: Final volume (V2)

$\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}\\\frac{PV}{T} = \frac{(2P)V_2}{(5/4)T}\\\frac{V}{1} = \frac{(2)V_2}{5/4}\\5/4V = 2V_2\\\\V_2 = \frac{5V}{8}$

5 0

2 years ago

How many neutrons are in the nucleus of a chlorine-35 isotope?

earnstyle [38]

The answer is: 18 neutrons

Explanation:

An atom of chlorine-35 contains 18 neutrons (17 protons + 18 neutrons = 35 particles in the nucleus) while an atom of chlorine-37 contains 20 neutrons (17 protons + 20 neutrons = 37 particles in the nucleus). Adding or removing a neutron from an atom's nucleus creates isotopes of a particular element.

7 0

3 years ago

Read 2 more answers

The action of processing plastic or aluminum cans into another usable product is called

maw [93]

Recycling I suppose.

7 0

4 years ago

What process results in a new substance being formed?

Burka [1]

Chemical reaction, the others are changes but it doesn’t make a real difference to the material. Chemical change does tho, it makes a new substance. For example fire

7 0

4 years ago

Given 50g of sodium how many moles do you have?

Anastaziya [24]

Answer:

Amount of Na = 2.17moles

Explanation:

Mass of Na = 50g

Molar mass of Na = 23g/mol

Amount of mole = mass/molar mass

Amount of mole = 50/23

Amount of mole = 2.17moles

5 0

4 years ago