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3 years ago

A real gas behaves more like an ideal gas when the gas molecules are

Chemistry

2 answers:

musickatia [10]3 years ago

8 0

Have weak and they are far apart

Vitek1552 [10]3 years ago

7 0

Far apart and have weak attractive forces between them

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Successive ionization energy for Cu²+

kogti [31]

Answer:

Here's what I get

Explanation:

The ionization energy (I) is the energy required to remove an electron from an atom in the gaseous phase.

You can remove electrons in succession and measure the energies required as I₁, I₂, I₃, etc.

Thus, the removal of two electrons from Cu gives you Cu²⁺.

I found the ionization energies of Cu and used them to create those of Cu²⁺ (see table and graph below).

The electron configuration of Cu²⁺ is

Cu²⁺: 1s² 2s²2p⁶ 3s²3p⁶ 3d⁹

You can remove the nine 3d electrons and then there is a sudden jump from I₉ to I₁₀ as you break into the filled [Ar] configuration.

Similarly, there is big jump from I₁₇ to I₁₈ as you break into the filled [Ne] configuration.

8 0

3 years ago

Physical changes in water are most often caused by

marusya05 [52]

the answer would be B. temperature

7 0

3 years ago

Determine the molarity for the fixer Sodium carbonate decahydrate (I dissolved 127.62 grams of sodium carbonate for every 4 lite

grin007 [14]

Answer:

0.112 M.

Explanation:

Molarity is the no. of moles of solute in a 1.0 L of the solution.

M = n/V.

M = (mass/molar mass)solute x (1000/V of the solution).

mass = 127.62 g.

molar mass = 286.138 g/mol.

V of the solution = 4.0 L = 4000.0 mL.

∴ M = (mass/molar mass)solute x (1000/V of the solution) = (127.62 g / 286.138 g/mol) x (1000 / 4000.0 mL) = 0.1115 M ≅ 0.112 M.

4 0

4 years ago

Please help, don't understand this topic

Darya [45]

Answer:

Pangaea

Alfred Wegner

plate tectonics

Explanation:

What did Earth look like 250 million years ago? The continents of Earth were clustered together in formation that a scientist named Pangaea.The scientist that named "Pangaea" was a German scientist by the name of Alfred Wegner. He theorized that "Pangaea" split apart and the different landmasses, or continents, drifted to their current locations on the globe. Wegener's theories of plate movement became the basis for the development of the theory of plate tectonics.

8 0

3 years ago

Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing

UkoKoshka [18]

Answer: 1.2 moles of carbon dioxide is produced for the given value of oxygen.

Explanation:

The chemical reaction for the combustion of acetylene follows the equation:

$2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O$

By stoichiometry of the reaction:

5 moles of oxygen produces 4 moles of carbon dioxide.

So, 1.5 moles of oxygen will produce = $\frac{4}{5}\times 1.5=1.2mol$ of carbon dioxide.

Hence, 1.2 moles of carbon dioxide is produced for the given value of oxygen.

4 0

4 years ago