All categories

3 years ago

Copper is used in household wiring because ____.

2 answers:

6 0

Copper is used in household wiring because it is a good conductor of electricity and heat. Since conductors have low resistance, therefore copper has low resistance too.

Your answer is: Good conductor or electricity and heat

Have an amazing day!

Novosadov [1.4K]3 years ago

5 0

It's a good conductor of energy and heat I believe,or at least that's what it said in my textbook

You might be interested in

What phenomenon is most responsible for ocean layers?

igomit [66]

Answer:

precipitations

Explanation:

bcoz of water

7 0

3 years ago

Read 2 more answers

HeLP PLZ!!!!!!!Determine whether each of the following is a covalent or ionic compound? im not sure if im right. Covalent: OF2,P

Svetradugi [14.3K]

Ionic compounds are composed of a non-metal as the anion and a metal as the cation. Covalent compounds on the other hand are composed of both non-metals from both charges. In this case, OF2 is covalent, PBr3 is covalent, SeO2 is ionic, C5H12 is covalent, and CBr4 is covalent.

5 0

3 years ago

Calculate the percent ionization of a 0.18 M benzoic acid solution in a solution containing 0.10 M sodium benzoate.

Yuliya22 [10]

Answer:

% I = 0.083 %

Explanation:

C6H5COOH + NaOH ↔ NaC6H5CO2 + H2O

∴ M C6H5COOH = 0.18 mol/L

∴ M NaC6H5CO2 = 0.10 mo/L

% ion = ( { H3O+ ] / initial acid concentration ) * 100

⇒ C6H5COOH ↔ H3O+ + C6H5COO-

⇒ NaC6H5CO2 ↔ Na+ + C6H5COO-

∴ Ka = 6.4 E-5 = ( [ H3O+ ] * [ C6H5COO- ] ) / [ C6H5COOH ]

Ka value taken from the literature

mass balance

⇒ 0.18 + 0.1 = [ C6H5COOH ] + [ C6H5COO- ]

⇒ [ C6H5COOH ] = 0.28 - [ C6H5COO- ] ........(1)

charge balance:

⇒ [ H3O+ ] + [ Na+ ] = [ C6H5COO- ]

∴ [ Na+ ] ≅ M NaC6H5CO2 = 0.1 M

⇒ [ C6H5COO- ] = [ H3O+ ] + 0.1..............(2)

(1) and (2) in Ka:

⇒ 6.4 E-5 = ( [ H3O+ ] * ( [ H3O+ ] + 0.1 ) / ( 0.28 - ( [ H3O+ ] + 0.1 ) )

⇒ 6.4 E-5 = [ H3O+ ]² + 0.1 [H3O+ ] / ( 0.18 - [ H3O+ ] )

⇒ 1.17 E-5 - 6.5 E-5 [ H3O+ ] = [ H3O+ ]² + 0.1 [ H3O+ ]

⇒ [ H3O+ ]² + 0.1 [ H3O+ ] - 1.17 E-5 = 0

⇒ [ H3O+ ] = 1.493 E-4 M

⇒ % I = ( 1.493 E-4 / 0.18 ) * 100 = 0.083 %

6 0

3 years ago

Some fireplace logs (commercially made) burn with a red and/or green flame. Using the information in this experiment, what eleme

Diano4ka-milaya [45]

Answer:

Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce. For example, copper produces a blue flame, lithium, and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame. When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colors. Each metal gives a characteristic flame emission spectrum

5 0

3 years ago

How is a battery and a banana the same when considering energy?

emmainna [20.7K]

A battery and a banana are the same when considering energy:

A battery when connected to a device produces electro-chemical reactions and contains one or more cells. The same thing can be tried out with fruits also. There are many fruits which can be taken into account. A lemon shows less amount of voltage when seen through a multimeter rather than a banana which shows a higher voltage. This was because of the acid present in the a fully ripped banana. The acid is called ascorbic acid. This acid has a higher pH level than compared to the pH of the citric acid found in lemon.

This shows that a banana plant is not so expensive and reliable for the production of renewable energy and a battery is also inexpensive, reliable and stable.

4 0

4 years ago