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3 years ago

Write a balanced half-reaction describing the oxidation of aqueous chloride anions to gaseous dichlorine.

1 answer:

8 0

Oxidation is a process which involves losing electrons in a reaction by an ion, atom or a molecule. It happens when the oxidation state of the ion, atom or the molecule is being increased. Chloride anions has an oxidation state of -1 and dichlorine has an oxidation state of zero or neutral charge. The balanced half-reaction would be written as:

2Cl- = Cl2 + 2e-

To balance the charge on both sides, two electrons should be produced or released by the anion form of chlorine. Being oxidized would mean that the charge of the ion or molecule is being increased. In this case, it is increased from -1 to 0.

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Concentration data is commonly monitored during a reaction to determine the order with respect to a reactant. Consider the types

alexira [117]

Answer:

1) first order

2) zero order

3) second order

Explanation:

For a first order reaction, the concentration of the reactants varies exponentially with the rate of reaction. The curve of a first order reaction shows an exponential relationship between the rate of reaction and the change in the concentration of reactants.

For a zero order reaction, the rate of reaction is independent of the concentration of the reactants. So, regardless of the amount of reactant in solution, the rate of reaction is constant.

For a second reaction, the reaction rate increases in direct proportion to the concentration of the reactant in solution.

6 0

2 years ago

40 points pls (10 more if its not plaigerized plsss) thank youuuu (if u just do it for points u will get reported bc its not the

mars1129 [50]

Answer:

The freshwater sources that are generally in continuous motion and follow a defined path are called streams and rivers.

If I were to improve the lab then I will make the following changes:

The experiment aimed to observe and model the effects of rivers on erosion. So, I can make a virtual model of the river and can compare the velocity, gradients and volume of rivers.

Comparison between the low and high factors listed can help in computing the effect of the powerful river on erosion.

The high velocity. gradient and volume of the river will cause more erosion as it exerts more force.

The low volume, gradient and velocity river will affect in a less manner on erosion.

Explanation:

thats all i know ( correct me if im wrong please)

5 0

2 years ago

The out side t layer is the linnets layer in the earth

Vera_Pavlovna [14]

The crust is the outside layer and also the thinnest.

5 0

3 years ago

How to find how many electrons are in an element

Murljashka [212]

Explanation:

1) Locate the atomic number in the upper left corner of the square. The atomic number will tell you the number of protons

2) In a neutral state, the element will contain the same number of protons as it will electrons.

--> Boron (B) has an atomic number of 5, so it has 5 protons.

--> Having 5 protons (+1 charge each) means to be balanced, it must have 5 electrons (-1 charge each)

However, what if it's not in a neutral state?

If it's not in a neutral state, it will look something like this:

Ca ^ 2+

Btw, the "^" means that it will be written like it's an exponent. That confuses people sometimes.

Anyways, the "2+" means it's an ion with a positive charge of 2. For us to have a positive charge, it means it's lost two electrons (cause electrons are negative, so taking them away means we are left with a more positive charge).

To get the number of remaining electrons, subtract the 2 from the atomic mass. In this case, that would be 20.

20 - 2 = 18 electrons

Another example:

N ^3-

Atomic Number: 7

7 + 3 = 10 electrons.

Why did I add here instead of subtracting? It's cause the 3- means we have added electrons, resulting in the ion having a negative charge. It's got more electrons than usual.

Hopefully this helps a bit.

5 0

3 years ago

F2 is light yellow/colorless in hydrocarbon solvent. I2 is pink. If a student combines fluorine water with NaI (sodium iodide) i

Tamiku [17]

F₂ + 2 NaI → 2 NaF + I₂
It is given that F₂ is light yellow / colorless in hydrocarbon solvent. The student combines Fluorine water with NaI in water. Then student adds pentane in the mixture of F₂ and NaI. After dissolution, solution was observed and a colorless pentane layer was seen. Alkanes are unreactive in nature. The C-H bond in alkane is difficult to break. whereas, F₂ is very reactive and reacts vigorously with alkanes in presence of light by free radical mechanism.It is given that the color of the solution is nearly colorless. F₂ when present in hydrocarbon solvent is light yellow/ colorless/ nearly colorless. Hence, F₂ is not reacting with hydrocarbon and there is no reaction taking place (No F₂ is present)

5 0

3 years ago