Atoms in the amino acids become the h₂O molecule produced by their action in the model and come off from the central carbon and nitrogen but not from the carboxyl, R side chain, or amine.

An amino acid is a group of organic molecules that consist of a basic acidic carboxyl group (―COOH), amino group (―NH2), and an organic R group (or side chain) that is different from each amino acid. Amino acid, the term is a short form of α-amino [alpha-amino] carboxylic acid.

Whereas, the peptide bond is the chemical bond which is a chemical bond formed between two molecules when the carboxyl group of a particular molecule reacts with the amino group of the other molecule, leading to releasing a molecule of water (H2O).

Each molecule consists of a central carbon atom referred to as the α-carbon, to which both a carboxyl group and amino are attached. The remaining two bonds of the α-carbon atom are generally occupied by the R group and a hydrogen (H) atom .

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4 0

2 years ago

To show the electron configuration for an atom, when would it be better to use an orbital notation than to use a written configu

anzhelika [568]

I believe it would be better to use an orbital designation than the written configuration, if the number of electrons in the ground state of the atom are quite high for the given element, as above 50, for instance.

This saves space and also one can see the discrete quantized energy levels associated with the subshells of the main energy levels if written in orbital designation.

7 0

3 years ago

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Some compounds are better known by their common names than by their systematic chemical names. Give the chemical formulas of the

kondaur [170]

Explanation:

(a) Dry ice is solid carbon dioxide and its chemical formula is solid $CO_{2}$ .

(b) Sodium chloride is commonly known as salt in daily life. Hence, chemical formula of salt is NaCl.

(c) Laughing gas is also known as dinitrogen monoxide. Hence, its chemical formula is $N_{2}O$ .

(d) Marble (chalk limestone) is chemically known as calcium carbonate. Hence, its chemical formula is $CaCO_{3}$ .

(e) Baking soda is chemically known as sodium bicarbonate. Hence, its chemical formula is $NaHCO_{3}$ .

(f) Ammonia has a chemical formula as $NH_{3}$ .

(g) Water has a chemical formula as $H_{2}O$ .

(h) Milk of magnesia is a base and it is chemically known as magnesium hydroxide. Its chemical formula is $Mg(OH)_{2}$ .

(i) Epsom salt is most often found as heptahydrate of sulfate mineral epsomite. Its chemical formula is usually $MgSO_{4}.7H_{2}O$ . If not present as a heptahydrate then its chemical formula is $MgSO_{4}.(H_{2}O)_{x}$ where, value of x can be equal to 0 to 7.

5 0

3 years ago