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Marta_Voda [28]
3 years ago
7

Conductors allows electricity to flow easily through them. (examples copper and

Chemistry
2 answers:
poizon [28]3 years ago
7 0
The answer would be true almost all metals conduct electricity
Ivan3 years ago
5 0

Answer:

I believe its True

Explanation:

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Consider the following voltaic cell:(b) In which half-cell does oxidation occur?
damaskus [11]

At the anode, half-cell oxidation occurs in a voltaic cell.

<h3>Voltaic Cell Principle</h3>

A voltaic cell generates electricity due to the Gibbs free energy of spontaneous redox processes occurring inside the cell, which is the basis for the voltaic cell's operating principle.

Two half-cells plus a salt bridge make up the voltaic cell. An electrolyte-immersed metallic electrode is present on each side of the cell. These two half-cells are wired together to form a connection to a voltmeter.

<h3>Voltaic Cell Parts</h3>
  • Copper makes comprises the cathode of a photovoltaic cell. This electrode serves as the cell's positive terminal, where reduction takes place.
  • Anode: Zink metal makes up this electrode. It creates the cell's negative electrode, where oxidation takes place.
  • Oxidation and reduction are divided into two discrete parts in two half-cells.
  • Salt Bridge: It contains the electrolytes needed to finish the circuit in the voltaic cell.
  • The flow of electrons between the electrodes occurs via the external circuit.

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6 0
1 year ago
Which of the following samples will have the lowest pressure if they are all at the same temperature and in identical containers
snow_lady [41]

Answer:

c. 15 g Kr

Explanation:

The amount of a gas (Moles) is directely proportional to its pressure. That means the higher amount of moles, the highest pressure and vice versa.

Using molar mass of the compounds (Ne=20.2g/mol, Ar = 39.9g/mol, Kr = 83.8g/mol, CO₂ = 44 g/mol and F₂ = 38.0g/mol), moles of 15.0g of each gas are:

Ne = 15g ₓ (1mol / 20.2g) = <em>0.74 moles of Ne</em>

Ar = 15g ₓ (1mol / 39.9g) = <em>0.38 moles of Ar</em>

Kr = 15g ₓ (1mol / 83.8g) = <em>0.18 moles of Kr</em>

CO₂ = 15g ₓ (1mol / 44g) = <em>0.34 moles of CO₂</em>

F₂ = 15g ₓ (1mol / 38g) = <em>0.39 moles of F₂</em>

<h3>As 15g of Kr contains the less quantity of moles, this sample will con have the lowest pressure</h3>
8 0
3 years ago
A chemical reaction in which bonds are created is usually associated with ________.
Nikolay [14]

A  reaction in which bonds are created is usually associated with the Release of energy.

What are the various types of bonds?

There are three sorts of bonds:

1. Electrovalent or  electrovalent bond

2.  chemical bond

3.  dative bond

Electrovalent or electrovalent bond are formed when one or more electrons are transferred from one atom to another.

Covalent bonds are formed when the atoms during a  molecule share an equal number of electrons.

A dative bond is one in which both electrons in a shared pair come from the same atom.

Now, atoms tend to stabilize once they form chemical bonds, releasing energy within the process. Energy is released because there's a higher level of stability associated with a low energy level.

Hence, a  reaction in which bonds are created is usually associated with the release of energy.

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4 0
1 year ago
What is evaporation? Describe what happens at the molecular level during evaporation.
jasenka [17]
 Evaporation happens<span> when atoms or </span>molecules<span> escape from the liquid and turn into a vapor. Not all of the </span>molecules in a liquid have the same energy. <span>Sometimes a </span>liquid<span> can be sitting in one place (maybe a puddle) and its molecules will become a </span>gas<span>. That's the process called </span>evaporation<span>. It can happen when liquids are cold or when they are warm. It happens more often with warmer liquids. You probably remember that when matter has a higher temperature, the molecules have a higher </span>energy<span>. When the energy in specific molecules reaches a certain level, they can have a </span>phase change<span>. Evaporation is all about the energy in individual molecules, not about the average energy of a system. The average energy can be low and the evaporation still continues. </span>
6 0
3 years ago
I need help with it please
Sati [7]

Answer:

1. cells

2. energy

3. pre-existing cells by division

Explanation:

8 0
3 years ago
Read 2 more answers
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