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3 years ago

What causes the electrons to move and form static electricity?

Chemistry

1 answer:

Effectus [21]3 years ago

4 0

Answer:

friction

Explanation:

The rubbing of certain materials against one another can transfer negative charges, or electrons.

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The three percenters, also styled 3 percenters, 3%ers and III%ers are American and Canadian far-right anti-government.

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3 years ago

If a solution has a perfect neutral pH, what is the concentration of hydrionium ions in the solution

Oksana_A [137]

Neutral pH means a pH of 7, yes? Recall that 'pH' means the POWER of Hydrogen. You should be familiar with the equation : pH = -log[H+].

In this case, 7 = log[H+].

Mathematically rearranged, this means that to find H+ concentration,

[H+] = 10 ^-pH.

In this case, [H+] = 10 ^-7.

I am assuming this is conducted at a standard 25 degrees. The auto-dissociation formula of water is this: Kw = [H3O+] x [OH-] at 25 degrees.

The concentration of Hydronium is the same as the concentration of hydrogen, 10 ^-7. mol/L.

There's your answer!

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4 years ago

Group VIlA elements are very active non metal

igomit [66]

Explanation:

Halogens (group 17) are very reactive because they need only one electron to fulfil their noble gas configuration. That's what ...

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3 years ago

Mass of Mg (g): 0.2000 Mass of oxide (g): 0.3317 1. Determine the empirical formula of the oxide of magnesium. (Think carefully

goldfiish [28.3K]

Answer:

1. Empirical formula is MgO

2. 2Mg + O₂ --> 2MgO

3. 3Mg + N₂ ---> Mg₃N₂

4. Mg₃N₂ + 6H₂O ----> 3Mg(OH)₂ + 2NH₃

5. Mg(OH)₂ ---> MgO + H₂O

Explanation:

1. Empirical formula:

mass of magnesium oxide = 0.3327 g; mass of magnesium = 0.2000 g

mass of oxygen = 0.3317 g - 0.2000 g = 0.1317 g

molar mass of magnesium = 24, molar mass of oxygen = 16

molar ratio of magnesium to oxygen is then calculated;

magnesium = 0.2000/24 = 0.0083 : oxygen = 0.1317/16 = 0.0082

magnesium = 0.0083/0.0082 = 1 : oxygen = 0.0082/0.0082 = 1

molar ratio of magnesium to oxygen = 1 : 1

Therefore, empirical formula is MgO

2. The reaction of magnesium with molecular oxygen produces magnesium oxide as shown by the equation below:

2Mg + O₂ --> 2MgO

3. The reaction of magnesium with molecular nitrogen produces magnesium nitride as shown by the equation below:

3Mg + N₂ ---> Mg₃N₂

4. The reaction of magnesium nitride with water produces magnesium hydroxide and ammonia gas as shown by the equation below:

Mg₃N₂ + 6H₂O ----> 3Mg(OH)₂ + 2NH₃

5. The products of the reaction of heating magnesium hydroxide are magnesium oxide and water as shown by the equation below:

Mg(OH)₂ ---> MgO + H₂O

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4 years ago

An adiabatic Turbine has R-134a as the working fluid. The inlet has a pressure of 200 kPa and a temperature of 20°C while the ou

Reptile [31]

Hey there!:

Detailed solution is shown below ask if any doubt :

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4 years ago