CHEMISTRY HIGH SCHOOL

Predict whether a reaction will occur when HClO and Sr(OH)2 solutions are mixed, if yes determine spectator ions in the ionic equation.

Answers

Answer 1
Answer:

Answer:

ClO^-\n\nSr^(2+)

Explanation:

Hello there!

In this case, according to the reaction between hypochlorous acid and strontium hydroxide which yields stontium hypochlorite and water as a neutralization reaction:

2HClO(aq)+Sr(OH)_2(aq)\rightarrow Sr(ClO)_2(aq)+2H_2O(l)

Thus, since HClO is a weak acid, it is not fully ionized so the complete ionic equation turns out to be:

2H^++2ClO^-+Sr^(2+)+2(OH)^-\rightarrow Sr^(2+)+2(ClO)^-+2H_2O(l)

Whereas the spectator ions, which remain the same at both sides of the equation, are:

ClO^-\n\nSr^(2+)

Best regards!
Answer 2
Answer:

Final answer:

A reaction occurs when HClO and Sr(OH)2 are mixed forming Sr(ClO)2 and H2O. In this reaction there are no spectator ions as all ions participate in the reaction forming new compounds.

Explanation:

When HClO (hypochlorous acid) and Sr(OH)2 (strontium hydroxide) solutions are mixed, a reaction takes place, resulting in the formation of Sr(ClO)2 and H2O. In this reaction, Sr2+ and OH- from Sr(OH)2 and H+ and ClO- from HClO are the ions that participate, therefore there are no spectator ions in the reaction. In the net ionic equation, spectator ions are the ions that remain the same in their ionic form on the both sides of the equation (reactant side and product side), thus, in this case, there are none. It's important to understand the concept of

solubility guidelines

and their use in determining reaction outcomes and recognizing

spectator ions

.

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Match the following chemical reactions:synthesis, reversible, exchange, decomposition1. molecules rearrange and form new molecules2. simultaneous decomposition and synthesis 3. bonds broken and elements released 4. molecules formed from components
Which statement explains why increasing thetemperature increases the rate of a chemical reaction, while other conditions remain the same? (1) The reacting particles have less energy and collide less frequently. (2) The reacting particles have less energy and collide more frequently. (3) The reacting particles have more energy and collide less frequently. (4) The reacting particles have more energy and collide more frequently.
Which element has a grater atomic radius ?phosphorus or bismuth?

The concentration 12 g/L means there are 12 g of solute present in__________of solution.

Answers

12 because the beach is blue and yea

Which of the following is not an effective way to manage forests and trees?a. planned harvesting
b. planting replacements
c. clearcutting
d. soil maintenance

Answers

The correct answer for the question that is being presented above is this one: "c. clearcutting." Clearcutting, clearfelling, or clearcut logging is a forestry/logging practice in which most or all trees in an area are uniformly cut down. Clearcutting in itself is not an effective way to manage forests and trees.

Answer:

C

Explanation:

Corrosion is what type of chemical change? a. oxidation
b. phase change
c. physical change
d. combustive reaction

Answers

(A)Oxidation is your answer..........

What type of bond is this combination most likely to form?

Answers

Sodium is a group 1 element with atomic number 1. It has 11 electrons. It is soft reactive metal. It has 1 valence electron.

Fluorine is a group 7 element, a hologen with 7 valence electron. It is a most reactive non metal.

When sodium react with fluorine, ionic bond is formed in the resulting compound sodium fluoride.

One sodium and fluorine each totaling 2 atoms are enough to make the bond.

As the bond is formed, both atoms have octet structure. That is they each have 8 electrons on their outermost shells.

The positive charge on sodium indicates that sodium had lost 1 electron to fluorine atom.

The negative charge on fluorine ion indicates that fluorine atom had gained 1 electron from sodium atom to form negative ion.

The name of the compound is sodium fluoride with formula NaF.

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If two gases are present in a container, the total pressure in the container is equal toa.the sum of the pressures that are exerted by each of the two gases.
b.twice the sum of the pressures that are exerted by the individual gases.
c.the sum of the pressures that each gas would exert if they occupied twice the volume.
d.the sum of the pressures that each gas would exert if they occupied half the volume.

Answers

Answer: The correct option is (a).

Explanation:

If two gases are present in a container, the total pressure in the container is equal to the sum of the all the individual pressures exerted by the individual gases in a container.

Individual pressure exerted by the individual gas in a container is called partial pressure of that individual gas.

So, total pressure of gas in container is:

p^o=p_a+p_b

Where p^o = Total pressure exerted by the gases in the container.

p_a = Partial pressure of gas 'a'

p_b = partial pressure of gas 'b'

The answer is a, because the question is referring to partial pressures. Partial pressures are a mere sum, no halving or doubling of anything is necessary.


So, A

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In a voltaic cell, chemical energy is converted to(1) electrical energy, spontaneously
(2) electrical energy, nonspontaneously
(3) nuclear energy, spontaneously
(4) nuclear energy, nonspontaneously

Answers

Answer:

(1) electrical energy, spontaneously

Explanation:

Voltaic cells or galvanic cells are electrochemical systems in which electrical energy is produced through spontaneous chemical reactions. Redox (reduction-oxidation reactions) processes forms the basis of voltaic cells.

Oxidation which involves loss of electrons takes place at the anode. These electrons move to the positive cathode where reduction or the gain of electrons takes place. The movement of electrons from the anode to the cathode generates electrical energy. Thus, chemical is spontaneously converted to electrical energy.

In a voltaic cell, chemical energy is converted to electrical energy, spontaneously because the redox reaction that takes place in the cell is spontaneous. So correct option is 1.

(1) electrical energy, spontaneously

A voltaic cell is made up of two half-cells, each of which contains an electrode and an electrolyte. The electrolyte is a substance that conducts electricity, and the electrode is a metal that can either gain or lose electrons.

The two half-cells are connected by a salt bridge, which is a tube filled with a solution that contains ions. The salt bridge allows the ions to move between the two half-cells, which completes the circuit and allows an electric current to flow.

The chemical reaction that takes place in the voltaic cell is a redox reaction. A redox reaction is a reaction in which electrons are transferred from one atom or molecule to another. In the voltaic cell, the electrons are transferred from the electrode in the first half-cell to the electrode in the second half-cell.

The transfer of electrons creates an electric current, which flows from the first half-cell to the second half-cell. The chemical energy of the redox reaction is converted into electrical energy, and the electric current flows until the chemical reaction is complete.

The conversion of chemical energy into electrical energy in a voltaic cell is a spontaneous process. This means that it happens without any outside intervention. The electrons in the cell move from one electrode to another because they are attracted to the oppositely charged electrode.

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