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4 years ago

11. A proton is also known as this ion.

Chemistry

2 answers:

dangina [55]4 years ago

6 0

A proton is the same as a Hydrogen ion

serg [7]4 years ago

6 0

Hydrogen ion
i have this question

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What is the maximum number of electrons that can be contained in the first, second, third, and fourth energy levels, respectivel

goldenfox [79]

We can find it by 2n^2 formula
So
First shell is maximum of 2
Second shell is of 8
Third shell is of 18
Fourth shell is of 32

8 0

4 years ago

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2co2 + 3h2o→c2h5oh + 3o2 express your answer numerically in k

Rama09 [41]

Answer: The enthalpy of the given reaction is 1234.8kJ/mol.

Explanation: Enthalpy change of the reaction is the amount of heat released or absorbed in a given chemical reaction.

Mathematically,

$\Delta H_{rxn}=\Delta H_f_{(products)}-\Delta H_f_{(reactants)}$

For the given reaction:

$2CO_2(g)+3H_2O(g)\rightarrow C_2H_5OH(l)+3O_2(g)$

$H_f_{(CO_2)}=-393.5kJ/mol$

$H_f_{(H_2O)}=-241.8kJ/mol$

$H_f_{(C_2H_5OH)}=-277.6kJ/mol$

$H_f_{(O_2)}=0kJ/mol$

$\Delta H_{rxn}=\Delta H_f_{(C_2H_5OH)}+3\Delta H_f_{(O_2)}-[2\Delta H_f_{(CO_2)}+3\Delta H_f_{(H_2O)}]$

Putting values in above equation, we get:

$\Delta H_{rxn}=[-277.6+3(0)]-[2(-393.5)+3(-241.8)]kJ/mol$

$\Delta H_{rxn}=1234.8kJ/mol$

7 0

3 years ago

At room temperature though which of the following substances would sound travel the slowest

Crank

Give me a list of objects

7 0

3 years ago

Read 2 more answers

The combustion of 1 mol ch4 releases 803 kj of energy. how much energy is produced from the combustion of 5.00 mol ch4.

Annette [7]

Answer : The energy produced from the combustion of 5 mole $CH_4$ is $4015KJ$

Solution : Given,

Released energy = 803 KJ

The balanced combustion reaction is,

$CH_4+2O_2\rightarrow CO_2+2H_2O$

As per the question,

1 mole of $CH_4$ releases energy = 803 KJ

5 mole of $CH_4$ produced energy = $\frac{5mole}{1mole}\times 803KJ=4015KJ$

Therefore, the energy produced from the combustion of 5 mole $CH_4$ is $4015KJ$

7 0

4 years ago

How can you turn mechanical energy into electrical energy

Ghella [55]

Answer:

In a turbine generator, a moving fluid—water, steam, combustion gases, or air—pushes a series of blades mounted on a rotor shaft. The force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy.

Explanation:

Hope this helps!

Brain-List?

3 0

3 years ago