When should you not use AC Pro?

Your car was built before 1994 and has never been converted from R-12 to R-134a. You drive a hybrid or electric car. It took less than two weeks for your A/C to go from cold to hot. Your compressor is running, but the A/C pressure is too high. You’ve already added A/C Pro. Does AC … Read more

Does AC Pro Max seal work?

When should you not use AC Pro? Your car was built before 1994 and has never been converted from R-12 to R-134a. You drive a hybrid or electric car. It took less than two weeks for your A/C to go from cold to hot. Your compressor is running, but the A/C pressure is too high. … Read more

What is the brief history of organic chemistry?

In the late 1700s and early 1800s, organic natural products were isolated by Scheele, and Chevreuil separated carboxylic acids from saponification of fats. Organic chemistry had started. Lavoisier invented and Berzelius improved combustion analysis for organic characterization. What is natural products in organic chemistry? For an organic chemist, a natural product is one that is … Read more

What is natural products in organic chemistry?

For an organic chemist, a natural product is one that is produced by a living organism. This definition encompasses many compounds already discussed, such as carbohydrates, proteins, lipids, and nucleic acids, all of which play an important and primary role in metabolic reactions. What is the brief history of organic chemistry? In the late 1700s … Read more

How is the bomb calorimeter used to determine the amount of energy of a particular food?

A bomb calorimeter is used to measure the heat created by a sample burned under an oxygen atmosphere in a closed vessel (bomb), which is sur- rounded by water, under controlled conditions. The measurement result is called the Combustion-, Calorific- or BTU-value. What does a bomb calorimeter determine? The Bomb Calorimeter (Model-IKA C2000) was used … Read more

What does a bomb calorimeter determine?

The Bomb Calorimeter (Model-IKA C2000) was used to measure the cross calorific value of the solid and liquid samples. It is a constant-volume type calorimeter that measures the heat of a particular reaction or measures the calorific value of the fuels. When a bomb calorimeter is used to determine the heat of reaction? So, when … Read more

What are the 4 types of polymers?

Natural polymers. Natural polymers are all those found in nature. Synthetic polymers. Synthetic or artificial polymers are manufactured in the laboratory and generally have petroleum-derived ingredients. Addition polymers. Condensing polymers. Rearrangement polymers. Biodegradable polymers. What is a polymer in materials? Polymers are large molecules made up of long chains or networks of smaller molecules called … Read more

Which is an example of a polymer chemistry?

Examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins. What is a polymer in materials? Polymers are large molecules made up of long chains or networks of smaller … Read more

What is a polymer in materials?

Polymers are large molecules made up of long chains or networks of smaller molecules called monomers. Natural polymers include silk, hair, proteins and DNA, while synthetic (man-made) polymers include polyethylene, polypropylene and polyester. What are the 4 types of polymers? Natural polymers. Natural polymers are all those found in nature. Synthetic polymers. Synthetic or artificial … Read more

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