CHEMISTRY HIGH SCHOOL

Which organic reaction produces rubber and plastics? A) polymerization B) esterification C) saponification D) fermentation

Answers

Answer 1
Answer:

Answer: Option (A) is the correct answer.

Explanation:

When monomers in a chemical reaction combine together then it results in the formation of long chains. This process is known as polymerization.

For example, rubber and plastic are formed by polymerization.

Esterification is defined as a process in which esters are formed when an acid is heated with alcohol.

Saponification is defined as a process in which aqueous alkali is heated with a fat or oil resulting in the formation of a soap.

Fermentation is a process in which bacteria like microorganisms, yeast etc help in the breakdown of a substance into simpler substances.

Thus, we can conclude that polymerization is an organic reaction which produces rubber and plastics.
Answer 2
Answer: The answer would be, A) Polymerization.

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Which of the following pH values indicates the highest concentration of hydronium ions in a solution?

Answers

pH value is the power of the hydrogen ions concentration in a solution. The more is the concertation more basic will be the solution, Less is the concertation more will be an acidic solution.

  • The highest concertation of ions is 1.0 as the lower is pH level the higher is the concentration of ions. Hence the option B 1.0 has an aqueous solution that has more ions.

Learn more about the pH values indicating the highest concentration.

brainly.com/question/20161888.
Hydronium ions are H30+, and pH = -log10[H+] 

As H+ ions in solution exist as H3O+ ions, the lower the pH, the higher the concentration of H30+

What types of elements tend to combine to form molecular compounds?

Answers

Non-metals tend to combine to form molecular compounds.

What is a Covalent compound?

  • Covalent compounds are made up of two or more nonmetallic elements, such as carbon and hydrogen. Covalent bonds hold the atoms of the various elements together in molecules to form a covalent compound.
  • Atoms share valence electrons in these chemical bonds. The atoms in the molecule are held together by the attraction between the shared electrons and the positive nuclei of both atoms.
  • The smallest component of a covalent compound that retains the properties of the complex is called a molecule. Thousands of atoms make up the biggest, most intricate covalent compounds.
  • Examples include the substances found in living things such as proteins and carbohydrates. Covalent compounds having only two atoms in their molecules are the smallest and most basic.
  • Many covalent compounds are easily burned, notably those that contain carbon and hydrogen. Many ionic substances, in contrast, do not burn.
  • In contrast to most ionic compounds, many covalent compounds do not dissolve in water. Covalent compounds cannot conduct electricity because they lack freely moving electrons, unlike ionic compounds.
  • Most covalent compounds have relatively low boiling temperatures because the individual molecules of covalent compounds may be separated more readily than the ions in a crystal.

To learn more about molecular compounds, refer to

brainly.com/question/26388921

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Most molecular compounds are composed of the atoms of two or more nonmetals, ionic compounds on the other hand, are formed from a metal and a non metal. All of them, with the exception of the "Noble" gases (group 8 in the periodic table). Even these have been forced to form compounds under unique laboratory conditions, with the exception of Helium. No stable compound of Helium is known

In what way are all sound waves and light waves similar?

Answers

Hello.In a homogeneous environment, the distribution of the light waves and sound waves is rectilinear and uniform (in constant speed).
So sound waves, and light waves. Well they are both waves, they can be reflected/refracted.

During the 1960s and 1970s, Cesar Chavezworked to unionize migrant farm workers by
(1) seizing the land of the lettuce and grape
growers
(2) securing passage of federal legislation to limit
immigration
(3) using nonviolent tactics such as boycotts and
hunger strikes
(4) urging growers to reduce the workforce
through mechanization

Answers

Answer:

The correct answer is option (3) "using nonviolent tactics such as boycotts and hunger strikes".

Explanation:

Cesar Chavez was a leader of American labor and civil right activists that fought to unionized migrant farm workers by the creation of The National Farm Workers Association. Cesar Chaves used nonviolent tactics to support the migrant farm workers. For instance, when Filipino American farm workers protested for higher wages in 1965, he encouraged Americans to boycott table grapes to support them; while he once performed a 24-day hunger strike in 1972 in the Santa Rita Center as a response to Arizona prohibiting boycotts and strikes by farm workers.

What is a chemical equation list any four ways in which a chemical equation can be more informative​

Answers

the any four ways in which a chemical equipment can be more informative are 1 colour change2 change of temperature 3 evolution of gas 4 production of n odar

Explanation:

if the answer is correct mark me as brain list

A researcher is designing a laboratory experiment to determine whether the inorganic substance A affects the rate of a reaction between two colored liquids, X and Y. When the reaction is complete, the liquid is clear. The reaction between X and Y is similar to one used by manufacturers to produce certain chemicals in factories. Which method would best answer his question about reaction rate and what will he find out about substance A?

Answers

Answer : First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst

Explanation : Measuring the time taken for the liquid to become clear when X and Y were mixed together will give an assumption about the reaction time and the rate of reaction.

Then same measurement should be done when the substance A is added to the liquid of X and Y mixture. If there is a fast reaction that occurs when A is added to the reaction mixture then it can be concluded that A acts as an catalyst for mixing X with Y. Also, by comparing the reaction rates of both the reaction it can be easily concluded that A was a catalyst or not.

Answer:

The answer is B

Explanation:

Just did the test and got it right
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