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r-ruslan [8.4K]
3 years ago
14

Which of the following reactions is an example of a single replacement reaction?

Chemistry
1 answer:
qwelly [4]3 years ago
4 0

Answer:

A

Explanation:

This is the only reaction where a element is displaced out of a solution and turn a soild, due to it been less reactive than the other causing its displacement The electrochemical series can be used as reference.

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Describe a situation in your life when you might see the ideal gas law exhibited.
statuscvo [17]

Answer:

The ideal gas law is expressed mathematically by the ideal gas equation as follows;

P·V = n·R·T

Where;

P = The gas pressure

V = The volume of the gas

n = The number of moles of the gas present

R = The universal gas constant

T = The temperature of the gas

A situation where the ideal gas law is exhibited is in the atmosphere just before rainfall

The atmospheric temperature of the area expecting rainfall drops, (when there is appreciable blockage of the Sun's rays by cloud covering) followed by increased wind towards the area, which indicates that the area was in a state of a low pressure, 'P', and or volume, 'V', or a combination of both low pressure and volume P·V

When the entry flow of air into the area is observed to have reduced, the temperature of the air in the area is simultaneously sensed to have risen slightly, therefore, the combination of P·V is seen to be proportional to the temperature, 'T', and the number of moles of air particles, 'n' in the area

Explanation:

8 0
3 years ago
What do you mean by electronegativity ?​
Kamila [148]

Answer:

Electronegativity is a measure of an atom's ability to attract shared electrons to itself. On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group.

Explanation:

Hope it is helpful....

6 0
3 years ago
Read 2 more answers
Which of the following is true of the energy levels of electrons in shells?
anyanavicka [17]

Answer:

Option C is the correct. Valence electrons have a higher energy level than those in other filled shells

Explanation:

Electrons must lose energy to move from the first to the second shell. FALSE

The electrons always win energy to move from the first to the second shell.

All the electrons in an atom have similar energy levels FALSE.

They are not neccesary similar. In hydrogen these are the level energy -13.6 eV , -3.4 eV , -1.51 eV , -85 eV  and -54 eV

Electrons do not have potential energy, just kinetic energy. FALSE

They have both.

Valencia electrons are the last electrons in the last layer. They have as much energy as possible and are responsible for forming bonds with other elements.

8 0
3 years ago
A substance such as a frozen sample of carbon dioxide, CO, does not melt into a liquid
Sedbober [7]
Answer: evaporation
5 0
3 years ago
Several companies produce personal water filters that can travel anywhere. Such filters make any water safe to drink by removing
Olenka [21]

Answer:

Follows are the solution to this question:

Explanation:

In this question, the given problem is used for secure accessing, drinkable water anywhere helps to solve personal filtered water. There are also both inexpensive and easy to access.  Its components used mostly for everyone's manufacturing are long-lasting. Instead of just endangering users, those who protect the other, are the potential benefits to overall outweigh the potential.

5 0
3 years ago
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