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4 years ago

How do subscripts represent the charge balance of ions

Chemistry

1 answer:

finlep [7]4 years ago

5 0

<h3><u>Answer and explanation</u>;</h3>

To balance the charges of ions the number of electrons lost is equal to the number of electrons gained. The overall net charge must be zero.
The number of ions needed to accomplish this is represented by the subscripts.
For any given ionic compound, the product of the charge on the ion (or multiatomic ionic group) times the subscript of the ion will give a total charge of zero when all ions are considered.

For examples: NaCl Na = +1 Cl = -1 total is zero

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Is PCl3 ionic or covalent?

mote1985 [20]

Answer:

covalent

Explanation:

P and Cl are non-metals, so bonds between P and Cl are covalent.

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4 years ago

What are the gas laws? (Include Boyle's law, charles's law, gay lussac's law, an avogadro's law) Could someone please summarize

Rina8888 [55]

Answer:

Boyle's Law: When the pressure of a gas increases, the volume of the gas will decrease as long as the temperature and amount of gas are constant.

So basically pressure is inversely proportional to Volume, when one increases, the other decreases, vice versa.

Equation: $P_{1} V_{1} = P_{2} V_{2}$

Charles Law: When the temperature of a gas increases, the volume of a gas will also increase if the pressure and amount of gas are constant.

So basically Temperature and volume are directly proportional.

Equation: $\frac{V_{1}}{T_{1}} = \frac{V_{2} }{T_{2} }$

Gay Lussac's Law: When the temperature of a gas increases, the pressure of a gas also increases when volume and the amount of gas remain constant.

Basically, Temperature and Pressure are directly proportional.

Equation: $\frac{P_{1}}{T_{1}} = \frac{P_{2} }{T_{2} }$

Avogadro's Law: The most intuitive gas law. When you increase the amount of gas, the volume will also increase.

Meaning the moles (amount of gas) is directly proportional to volume.

Equation: $\frac{V_{1} }{n_{1} } = \frac{V_{2} }{n_{2} }$ (n stands for moles)

There is a combined gas law and ideal gas law but those are just the gas laws mentioned above but combined together. These should be everything.

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2 years ago

Read 2 more answers

The outermost electrons are the_____electrons

Lynna [10]

Answer:

Valence electrons. they can be used to determine the group of an element.

Explanation:

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3 years ago

Please help me! <br> Which statement does not correctly describe the model of HCl?

s2008m [1.1K]

<u>Answer: </u>The correct answer is Option A.

<u>Explanation:</u>

The molecule given in the question is HCl which forms a polar covalent bond.

A polar bond is defined as the bond present between two elements with different electronegativity value. The element which has higher electronegativity value, attracts the shared pair of electrons towards itself and forms a dipole. A polar molecule is dissolved more in a polar substance than in non-polar substance.

In the given compound, the electronegativity of chlorine is more than hydrogen and attracts the shared pair of electron more towards itself and hence is a polar molecule.

A non-polar bond is defined as the bond which is formed between the elements having same electronegativity value. No dipole is created in these type of bonds. Here, the electrons are shared equally.

From the above information, the correct answer is Option A.

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3 years ago

The results of Rutherford's gold foil experiment gave him the evidence to conclude that the center of an atom was

Volgvan

Answer:

A piece of gold foil was hit with alpha particles, which have a positive charge. Most alpha particles went right through. This showed that the gold atoms were mostly empty space. Some particles had their paths bent at large angles. A few even bounced backward. The only way this would happen was if the atom had a small, heavy region of positive charge inside it.

c) positively charged and relatively small.

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3 years ago