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4 years ago

What example of scientific thinking does Bohr response best indicate

Chemistry

1 answer:

Ugo [173]4 years ago

4 0

Answer:

The Bohr model shows the atom as a central nucleus containing protons and neutrons with the electrons in circular orbitals at specific distances from the nucleus (Figure 1). These orbits form electron shells or energy levels, which are a way of visualizing the number of electrons in the various shells

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Which pair shares the same empirical formula? C2H4 and C6H6 CH2 and CH4 CH3 and C2H6 CH and C2H4

hoa [83]

Answer:

CH3 and C2H6

Explanation:

4 0

4 years ago

Read 2 more answers

Increasing the amount of current flowing through a wire strengthens

vagabundo [1.1K]

Answer:

It will strengthen Electromagnetism

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3 years ago

Which compound decreases in solubility as the temperature of the solution is increased from 10c to 50c

Marysya12 [62]

Answer:

2)NH₃

Explanation:

The answer choices of this question are:

1)NH₄Cl

2)NH₃

3)NaNO₃

4)NaCl

<h2 /><h2>Solution</h2>

The key to answer this question is to realize that NH₃ is a gas at the given temperatures.

The solutilibty of all gases always decreases when the temperature increases. Thus, the solubility of NH₃ will decrease when the temperature rises from 10ºC to 50ºC.

The reason for this behavior of gases is that the temperature and the kinetic energy of the particles are directly proportional. Thus, as the temperature incrases the kinetic energy of the particles increases.

As the kinetic energy of the molecules of gas in the liquid solution increases, their speeds also increase, meaning that more molecules will escape from the solution to the gas phase, leaving the soluton with less dissolved gas molecules.

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3 years ago

At a fixed volume, a four-fold increase in the temperature of a gas will lead to _______ in pressure.

timofeeve [1]

Answer:

D) a four-fold increase

Explanation:

According to Gay-Lussac's law, which states that the pressure of a given amount of gas is directly proportional to the temperature at a constant volume, the pressure increases with an increase in temperature.

According to this question, at a fixed volume, a four-fold increase in the temperature of a gas will lead to a four-fold increase in the pressure as well.

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3 years ago

Define oxidation number. Find the oxidation number of

IceJOKER [234]

(a) Cl = +7; (b) S = +6; (c) P = +5; (d) Mn = +6

Oxidation number is the charge that an atom appears to have when we count its valence electrons according to the following rules:

1. Lone pair electrons belong entirely to the atom.

2. Identical atoms share electrons equally

3. Electrons shared between two different atoms belong entirely to the more electronegative atom.

4. The sum of the oxidation numbers of all the atoms must add up to the charge on the species.

The most common oxidation numbers are: H = +1 and O = -2.

(a) HClO₄

H + Cl + 4O = 0

1 + Cl – 8 =0

Cl = 8 – 1 = +7

(b) H₂SO₄

2H + S + 4O = 0

2 + S – 8 = 0

S = 8 – 2 = +6

P + 4O = -3

P – 8 = -3

P = +5

(d) MnO₄²⁻

Mn + 4O = -2

Mn – 8 = -2

Mn = +6

6 0

3 years ago