CHEMISTRY HIGH SCHOOL

The vapor pressure of a liquid is 0.92 atm at 60°C. The normal boiling point of the liquid could be(1) 35°C (3) 55°C(2) 45°C (4) 65°C

Answers

Answer 1
Answer: The answer is (4) 65°C. For this question, you need to know that the definition of boiling is when a liquid's vapor pressure equals atmospheric pressure. Normal boiling point just means boiling point at sea level, when atmospheric pressure is 1atm. For this particular liquid, you would need to raise the temperature a little for the vapor pressure to rise to 1atm (because vapor pressure increases with temperature). Therefore your temperature must be higher than 60°C, and the only such choice available to you is (4).
Answer 2
Answer:

Answer:

  • 4 ¥

TRUST REASON

The answer is 4 because when the vapor pressure is in liquid form, the boiling point would be the hottest point

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Neutralization is a reaction between a(n)a. acid and a base.
b. acid and a metal.
c. base and a salt.
d. salt and water.

Answers

When an acidic solution and a basic solution come together, they cancel each other out thus neutralizing. So A is your answer

Im gonna stick with C base and a salt.

17. Which of the following is true about an electrolytic cell? It changes electrical energy into chemical energy.
It is the type of cell used in electroplating
It uses an electric current to make a nonspontaneous reaction go.
All of the above
18. The products formed in the net reaction of the electrolysis of water are ____.
aqueous hydrogen ion and hydroxyl ion
hydrogen gas and oxygen gas
liquid hydrogen and oxygen gas
liquid oxygen and hydrogen gas
19. What occurs in electroplating?
decomposition of a metal layer
decomposition of a salt layer
deposition of a metal layer on a material
deposition of a salt layer on a metal

Answers

The correct answers are:

17. All of the above
18. hydrogen gas and oxygen gas
19. deposition of a metal layer on a material

Electrolytic cells use electric currents to drive a non-spontaneous reaction forward. This is also used in electroplating which involves the movement of metal cations to the surface of another metal. Water can also undergo electrochemical reactions by splitting it into its gaseous components, hydrogen and oxygen.

Final answer:

An electrolytic cell uses an electric current to make a nonspontaneous reaction go and is used in electroplating. The products formed in the electrolysis of water are hydrogen gas and oxygen gas. Electroplating involves the deposition of a metal layer on a material.

Explanation:

An electrolytic cell is a type of cell that uses an electric current to make a nonspontaneous reaction go. This means it can drive a chemical reaction in a direction that does not occur naturally. Electrolytic cells are commonly used in electroplating, where a metal layer is deposited onto a material. Therefore, all of the given options in question 17 are true about an electrolytic cell. For question 18, the products formed in the net reaction of the electrolysis of water are hydrogen gas and oxygen gas. Electrolysis of water involves the decomposition of water into its elemental components. In electroplating, the process involves the deposition of a metal layer on a material. This is achieved by passing an electric current through a solution containing metal ions, causing the metal ions to be reduced and deposit onto the material's surface.

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How many electron are in 56fe 3

Answers

The periodic table is arranged in a way so that with each step the number of protons in the nucleus is increased by 1. It makes it for an easy choice to designate elements with numbers - atomic numbers, because in that case atomic number shows the number of protons possessed by the nucleus. Like this:
H has 1 proton
He has 2 protons
Li has 3 protons
Be has 4 protons and so on

Each proton has a charge of +1. The other particle present in the nucleus - the neutron - has zero electrical charge and thus irrelevant when computing the charge of a nucleus. It is easy to deduce that the nucleus charge equals the number of protons (which in turn equals the atomic number). So the nucleus charges are:
for H it's+1
for He it's +2
for Li it's +3
for Be it's +4 and so on

Atom is an electroneutral particle by definition. It means it's summed charge must be 0. Since we've looked at everything within the nucleus (the protons and the neutrons) it's time we turn our gaze to the space around it, which is full of orbiting electrons. Each electron has a charge of -1. To make up for the positive charge in the nucleus you have to fill the space aroung the nucleus with negative electrons.Thanks to the elementary nature of both proton and electron charge, you simply have to take the same number of electrons as that of protons! Like this:
H has 1 proton and 1 electron
He has 2 protons and 2 electrons
Li has 3 protons and 3 electrons
Be has 4 protons and 4 electrons and so on

Fe has atomic number 26. It means that Fe has 26 protons and 26 electrons. If it's a neutral atom

You typed 3. Is it accidental? If so, then the answer is above. If not, then you could be trying to type 56Fe +3, which means an ionic iron with charge +3. Charges are formed when you have too many or too few electrons to counter-balance the prositive charge of the nucleus. Charge +3 means you're 3 electrons short to negate the nucleus positive charge.

In other words, Fe+3 has 26 protons and 23 electrons.

Final answer:

56Fe3+  is an iron ion with a charge of +3, meaning it has 23 electrons after 3 electrons are lost from the uncharged state. It loses the 4s2 electrons first, then one of the 3d electrons.

Explanation:

The student's question refers to 56Fe3+. 56Fe3+ is an iron ion with a charge of +3, which means it has lost three electrons. Understanding the Electron configuration is vital here. Normally, iron (Fe) has 26 electrons as its atomic number is 26. Each electron has a negative charge. But in 56Fe3+, 3 electrons are lost; hence, it will have 23 electrons.

Let's look further into this. The electron configuration of an uncharged Fe atom is 1s²2s²2p6 3s²3p6 4s²3d6. The iron atom loses the 4s2 electrons first (becoming Fe2+), then one of the 3d electrons (becoming Fe3+ or 56Fe3+ as indicated in the question).

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What is the definition of solution?

Answers

For example in chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

Which party system is most common in a typical dictatorship?

Answers

Answer:one-party system

Explanation:Just had this question on my post test and was correct

Whether an ionic bond or a covalent bond forms, bonds form in order to make newly created substances ________ than the substances they were created from.a. less stable
b. more stable
c. less efficient
d. more efficient

Answers

I am sure the correct answer is B. Bonds are formed in order to make substances more stable than their former. Every process in this world works in order to achieve equilibrium or to be in a stable state this includes chemical reactions. Unstable substances will always find a way to become stable because it is the state with minimum energy.
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