Can a molecular formula show the arrangement of atoms in a molecule? Is it true or false?

Looking at the periodic table, which of these elements has the smallest atomic radius?

Sauron [17]

Helium
Remember: electron filling of atomic shell ...
The element which have electron in the lowest quantum shell will have the smallest atomic radius\

He:1s1 (Helium)

H:1s2 (hydrogen)

8 0

2 years ago

Malic acid, C4H6O5, has been isolated from apples. Because this compound reacts with 2 molar equivalents of base, it is a dicarb

Flura [38]

Answer and explanation:

The attached figure shows five different structures for the chemical formula C4H5O5, but only one of these structures represent the malic acid.

Malic acid is a dicarboxylic acid, this means malic acid has two

-COOH groups. Also, malic acid is a secundary alcohol, which means it has a R2-C-OH group.

-Structure A has two carboxylic groups, but it doesn´t have a secundary alcohol.

-Structure B doesn´t have any caborxylic group.

-Structure C has two carboxylic groups and it is a secundary alcohol. Structure C is the Malic acid

4 0

2 years ago

The compound NaOH dissolves in water to yield ?

Lunna [17]

<span>Hydroxide ions as the only negative ions</span>

7 0

2 years ago

Which statements about peptide bonds are true? The formation of a peptide bond involves a dehydration reaction. Peptides are pol

miv72 [106K]

Answer:

- The formation of a peptide bond involves a dehydration reaction.

- A tripeptide contains three amino acid residues.

Explanation:

Peptide bonds are a type of covalent bonds that form between amino acid molecules. A peptide bond links two amino acids together by removing an hydrogen atom from the amine functional group (-NH2) and an hydroxyl (OH) from carboxylic functional group (-COOH) to release a water molecule. Hence, the formation of a peptide bond involves a dehydration reaction i.e loss of water.

This linking of one amino acid to another via a peptide bond forms a polypeptide and consequently a protein molecule. In other words, proteins are polymers of peptides. However, the linkage of three amino acids is called TRIPEPTIDE

5 0

2 years ago

Identify ALL the possible mol ratio from<br> this balanced equation:

grandymaker [24]

Answer:

$\frac{1 mole of N_{2} }{3 moles of H_{2} }$

Explanation:

The equation of the reaction:

Nitrogen gas N₂ reacts with Hydrogen as H₂ to produce ammonia NH₃;

N₂ + H₂ → NH₃

The balanced equation is ;

N₂ + 3H₂ → 2NH₃

The mole ratio is the ratio of the coefficients of the combining reactants;

1 mole of N₂ combines with 3 mole of H₂;

So;

$\frac{1 mole of N_{2} }{3 moles of H_{2} }$

3 0

2 years ago