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4 years ago

Why is it reasonable to assume the specific heats of naoh and hcl solutions are the same as water?

1 answer:

7 0

It would be reasonable to assume that the specific heats of NaOH and HCl solutions are the same as water given that the concentration of these solutions are low about 1 M or less. Having low concentrations would mean that there is only small amount of particles of HCl or NaOH in the solution so most of the properties of the solution is the same as that of a pure water since less particles can interfere with any process. Specific heat is the amount of heat energy needed per mass in order to be able to raise the temperature by a degree. So, when these particles are present in small amount, it is only the water that would determine the amount of heat needed.

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3 years ago

What are limitations of a conclusion? I am doing a science lab write-up and under the conclusion it asks for limitations of the

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3 years ago

What is meant by ion and salt

Neko [114]

<u>Answer:</u>

Ion is a charged particle.

A neutral atom contains equal number of positive protons and negative electrons

When an electron is lost or gained the atom becomes a charged particle which is called as an ION.

For example

Na is an atom which contains 11 electrons and 11 protons(= to atomic number)

When Na loses an electron it will have 11 positive proton and 10 negative electron and Thus, Na will become $Na^+$ , a charge particle which we call it as sodium ion.

Cl is an atom which contains 17 electrons and 17 protons(= to atomic number)

When Cl loses an electron it will have 17 positive proton and 18 negative electron and Thus, Cl will become $Cl^-$ , a charge particle which we call it as chloride ion.

When an ion is positively charged it is called as a cation

When an ion is negatively charged it is called as an anion.

Salt is formed when an acid reacts with a base.

The cation of the base combines with the anion of the acid to form the salt.

$$Acid+Base>Salt+water$

HCl is acid and NaOH is a base forms salt NaCl and water.

$Cl^-$ is an anion of the acid and $Na^+$ is the cation of the base combines to form NaCl salt .

$H^+$ and $OH^-$ combines to form $H_2 O$

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3 years ago

Acid deposition would most likely result in_________

luda_lava [24]

Answer: Acid rain.

Explanation:

According to some experts, acid precipitation can lead to acid rain. Acid rain is a product of chemical reactions caused by the release of compounds such as sulfur dioxide and nitrogen oxides into the air. These substances can form in the atmosphere itself and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

There are specific theories that nitrogen oxides cause acid rain, in other sulfur oxides, which are produced by the combustion of coal or petroleum products, for example, in thermal power plants, automobile engines, and plants for the production and purification of metals. With water vapor, they produce nitric or sulfuric acid, respectively. This natural disaster is very bad for flora and fauna, it has a particular negative reflection on forests and the aquatic world, especially fish.

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3 years ago

What is the layer of Earth's atmosphere that has the coldest temperature range?

babymother [125]

The layer of Earth’s atmosphere that has the coldest temperature range is mesosphere

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3 years ago