Define the acid rain for class 10 .???

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Answer 1

Answer:

Answer: Acid rain is caused by a chemical reaction that begins when compounds such as sulphur dioxide and oxides of nitrogen are released into the air. These substances can rise very high up into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants called acid rain.

Explanation:

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How many liters of oxygen gas can be produced if 28.7 grams of water decomposes at 294 Kelvin and 0.986 atmospheres? Show all of the work used to solve this problem. . . 2 H2O (l) --->2 H2 (g) + O2 (g)
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On a mission to a newly discovered planet, an astronaut finds copper abundances of 69.97 % for 63Cu and 31.03 % for 65Cu. What is the atomic mass of copper for this location? The mass of 63Cu is 62.9300 amu . The mass of 65Cu is 64.9200 amu . Express your answer to two decimal places, and include the appropriate units.

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Okay so to find the average atomic mass of copper in this location, you want to take the percentage of abundance of an isotope and multiply (in decimal form) that by it's atomic mass, then you would add that with the product of the % of abundance of the other isotope times it's atomic mass.

(Side Note: Isotopes are atoms of the element that have the SAME number of protons but different number of neutrons, so they have different mass numbers. Also average atomic mass is the average of all the isotopes in an element - this number is the one that is shown on the periodic table of elements, not mass number).

Let me show you how to do this..

For the isoptope 63Cu I will first need to convert it's percentage of abundance into a decimal, because we don't use the percentage to multiply. 69.97% -> 0.6997. Now I am going to take it's atomic mass 62.9300 and multiply that by 0.6997.

62.9300*0.6997=44.0321

Now we still need to find calculate this for the isotope 65Cu. To convert 31.03% to a decimal I will just move the decimal point two places to the left, to get 0.3103.
So I am going to take this and multiply it by 64.9200 the atomic mass of the isotope 65Cu.

64.9200*0.3103=20.1447

Add the two of these to get the average atomic mass..
20.1447 + 44.0321=64.1768

Lewis Structure of HOClO

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At first you need to draw the lewis dots around each atom that you have.
Next thing that you should do is to connect the dots of HOClO and do not forget that each dot connect with one lone electron.
Then draw valence of each electron and connect them with a line.

Final answer:

The Lewis structure of HOClO consists of a hydrogen atom bonded to an oxygen atom, which is in turn bonded to a chlorine atom. Two chlorine atoms are also bonded to each other in the structure.

Explanation:

The Lewis structure of HOClO can be determined using the concept of valence electrons. Oxygen (O) has 6 valence electrons, Chlorine (Cl) has 7 valence electrons, and Hydrogen (H) has 1 valence electron. Based on this, the Lewis structure of HOClO can be represented as follows:

H - O - Cl - O

Where the oxygen atom is bonded to the hydrogen atom and the chlorine atom, and the two chlorine atoms are bonded to each other, resulting in a single bond and two double bonds.

Learn more about Lewis Structure of HOClO here:

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What is the answer to this question?

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I think it's 4 but I am not even 50% sure... But I think that is the answer..

How to figure out if compounds are electrolytes

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An electrolyte is a compound that dissolved into its ions when placed into a solvent such as water (the ions can carry an electric charge). An easy way to test whether something is an electrolyte is by placing the substance in Deionized water and testing if the resulting solution can carry a current. If the resulting solution can carry a current, the substance is an electrolyte. I hope this helps. Let me know if anything is unclear.

What is the salt produced when calcium hydroxide, Ca(OH)2, reacts with phosphoric acid, H3PO4, in a neutralization reaction?

Answers

Explanation:

A neutralization reaction is a reaction in which two different compounds combine together and result in the formation of salt and water.

Foe example, $Ca(OH)_(2) + H_(3)PO_(4) \rightarrow Ca_(3)(PO_(4))_(2) + 6H_(2)O$

Therefore, salt of calcium phosphate $Ca_(3)(PO_(4))_(2)$ is formed along with formation of water when compounds $Ca(OH)_(2)$ and $H_(3)PO_(4)$ react together.

$3Ca(OH) _(2) +2H _(3) PO _(4)$ ⇒ $6H _(2) O+Ca _(3)(PO _(4)) _(2)$
Calcium phosphate. Which is your Ca3(PO4)2.

Which is larger a zinc atom or a zinc ion? explain

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It depends if the zinc ion lost or gained an electron. But electrons are more than 2,000 times smaller than a proton or neutron so small diffrence.

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