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4 years ago

Which of the following is not harmed by acid rain?

Chemistry

2 answers:

Paul [167]4 years ago

7 0

B) Glass Windows..... Hope it helps :)

DiKsa [7]4 years ago

5 0

Answer: glass windows

Explanation:

An acid rain is appears when the sulfur oxide and nitrous oxide present in the atmosphere get mixed with the water vapors forms sulphuric acid and nitric acid in the atmosphere which comes down in the biosphere in the form of precipitation called as acid rain. The acid rain is capable of causing damage to the building materials such as concrete, marble, cement also capable of causing corrosion of the iron.

The acid rain has no effect over the glass windows because of the fact that glass is a solid hard material which cannot be damaged by the any kind of chemical such as acids or alkalies.

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Part a the sun produces energy via fusion. one of the fusion reactions that occurs in the sun is 411h→42he+201e how much energy

Orlov [11]

The equation for the nuclear fusion reaction is,
4 ¹₁H → ₂⁴He + 2 ₁⁰e
Calculation of mass defect,
Δm = [mass of products - mass of reactants]
= 4(1.00782) - [4.00260 + 2(0.00054858)]
= 0.0275828 g/mole
Given that,
Mass of Hydrogen-1 = 2.58 g
The no. of moles of ₁¹H = 2.58 g / 1.00782 = 2.56 moles
Therefore, the mass defect for 2.58 g of ₁¹H is,
= 2.56 moles * (0.0275828 g / 4) = 0.01765 x 10⁻³ kg
Energy for (0.01765 x 10⁻³ kg) is,
= (0.01765 x 10⁻³ kg) (3.0 x 10⁸)² = 1.59 x 10¹² J

4 0

4 years ago

Read 2 more answers

Integrated Problem 01.69 With current spectroscopic techniques, chemists are generally able to determine the structure of an unk

Gnesinka [82]

a or c becuse it means you should answer it very wiseley

5 0

3 years ago

Between which of these pairs of elements is a covalent bond most likely to form?

olga_2 [115]

Answer:

The correct option here is the first option

Explanation:

Covalent bond is the bond that involves the sharing of electrons between the participating atoms. The electrons (in the outermost shells of the atoms) that are involved this sharing are called the "shared pair" while those electrons (in the outermost shells of the atoms) that are not involved in this sharing are called the "lone pair". Bonding eventually leads to each of the participating atoms achieving it's octet configuration.

Carbon will bind covalently with fluorine (to form carbon tetrafluoride) with each of the electrons on the outermost shell of the carbon been shared covalently with fluorine atoms (that also requires just one electron to achieve it's octet configuration). Thus, at the end, we would have one carbon atom being covalently linked to four flourine atoms.

5 0

3 years ago

Name the separation technique which could be used to separate mud and water without heating

Westkost [7]

Answer:

Decantation

Explanation:

Decantation is a process to separate

mixtures by removing a liquid layer that

is free of a precipitate, or the solids

deposited from a solution. The purpose

may be to obtain a decant (liquid free

from particulates) or to recover the

precipitate.

Decantation relies on gravity to pull

precipitate out of the solution, so there is

always some loss of product, either from

the precipitate not fully falling out of the

solution or from liquid remaining when

separating it from the solid portion.

The Decanter

A piece of glassware called a decanter is

used to perform decantation. There are

several decanter designs. A simple

version is a wine decanter, which has a

wide body and a narrow neck. When

wine is poured, solids stay in the base of

the decanter.

In the case of wine, the solid is usually

potassium bitartrate crystals. For

chemistry separations, a decanter may

have a stopcock or valve to drain the

precipitate or dense liquid, or it may

have a partition to separate fractions.

Use of Alum and filtration process can also be administered for further purification

8 0

3 years ago

Which of the following groups of chemical elements would you expect to be most alike in their physical and chemical properties?

juin [17]

Many elements show very strong similarities to each other.<span>For example, lithium (Li), sodium (Na), and potassium (K) are all soft, very reactive metals.

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8 0

3 years ago