Ask question

Ask question

All categories

3 years ago

13

Can somebody plz answer both these questions in this question thanks! only 2 sentences is fine :)

2 answers:

yulyashka [42]3 years ago

5 0

Electricity works by getting a bunch of conductor elements together and creating a flow of electron-stealing patterns through them. Electricity is made at a generating station by huge generators.
The current is sent through transformers to increase the voltage to push the power long distances.
The electrical charge goes through high-voltage transmission lines that stretch across the country.
You can make it shorter but those are the answers.

serg [7]3 years ago

3 0

Answer:

Electricity is made at a generating station by huge generators. The current is sent through transformers to increase the voltage to push the power long distances. The electrical charge goes through high-voltage transmission lines that stretch across the country.

You might be interested in

Balance the following chemical equation correctly.

maks197457 [2]

Explanation:

2H2+O2– 2H2O
3Al+Fe2O3– 3AlO+2Fe
2Na+2HCl– 2NaCl+2H
CH4+O2– CO2+2H2
H2O+SO3– H2SO4

6 0

3 years ago

Consider the following reaction: 2CH3OH(g)  2CH4(g) + O2(g) ΔH = +252.8 kJ a) Calculate the amount of heat transferred when 24.

denpristay [2]

<u>Answer:</u>

<u>For a:</u> The amount of heat transferred for the given amount of methanol is 94.6736 kJ.

<u>For b:</u> The mass of methane gas produced will be 10.384 g.

<u>Explanation:</u>

For the given chemical reaction:

$2CH_3OH(g)\rightarrow 2CH_4(g)+O_2(g);\Delta H=+252.8kJ$

<u>For a:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

Given mass of methanol = 24.0 g

Molar mass of methanol = 32.04 g/mol

Putting values in above equation, we get:

$\text{Moles of methanol}=\frac{24.0g}{32.04g/mol}=0.749mol$

By Stoichiometry of the reaction:

For every 2 moles of methanol, the amount of heat transferred is +252.8 kJ.

So, for every 0.749 moles of methanol, the amount of heat transferred will be = $\frac{252.8}{2}\times 0.749=94.6736kJ$

Hence, the amount of heat transferred for the given amount of methanol is 94.6736 kJ.

<u>For b:</u>

By Stoichiometry of the reaction:

252.8 kJ of energy is absorbed when 2 moles of methane gas is produced.

So, 82.1 kJ of energy will be absorbed when = $\frac{2}{252.8}\times 82.1=0.649mol$ of methane gas is produced.

Now, calculating the mass of methane gas from equation 1, we get:

Molar mass of methane gas = 16 g/mol

Moles of methane gas = 0.649 moles

Putting values in equation 1, we get:

$0.649mol=\frac{\text{Mass of methane gas}}{16g/mol}\\\\\text{Mass of methane}=10.384g$

Hence, the mass of methane gas produced will be 10.384 g.

7 0

4 years ago

Tra số liệu trong sổ tay hóa học và vẽ đồ thị biểu diễn sự thay đổi của năng lượng ion hóa

kirza4 [7]

Explanation:

dbdbdjeie

focidjeiedjenekfkfmf

fofifof

s

diwiwkw

3 0

3 years ago

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent? combustion decompositio

horsena [70]

The answer is D, synthesis.

4 0

3 years ago

What is the lowest energy level that contains d orbitals?<br><br> A. 3<br> B. 4<br> C. 2<br> D. 1

sweet [91]

Answer:

3!!!!!

Explanation:

3!!!!!

5 0

3 years ago