Explanation

In both substitution and elimination reactions, the leaving group plays a similar role by departing from the alkyl halide, enabling the reaction to proceed.

Better leaving groups increase the likelihood of both types of reactions occurring.

Explanation

The reaction of HCN with formaldehyde is a nucleophilic addition reaction, where the cyanide ion (CN⁻) acts as a nucleophile.

It attacking the electrophilic carbonyl carbon of formaldehyde to form a cyanohydrin.

Explanation

Hydrocarbons do not have a tendency to form hydrogen bonding.

Because they lack highly electronegative atoms like oxygen or nitrogen that are necessary for hydrogen bonds.

In contrast, carboxylic acids, ammonia, and ethyl alcohol can all engage in hydrogen bonding due to their functional groups.

Explanation

The correct electronic configuration for carbon is 1s²2s²2p².

Indicating it has 6 electrons: 2 in the 1s orbital, 2 in the 2s orbital, and 2 in the 2p orbital.

Explanation

Mass spectrometry is used to determine the type and relative amounts of isotopes in an element by measuring the mass-to-charge ratio of ionized particles.

This helps identify different isotopes based on their mass differences.

Explanation

Dilatometry is a method of a physical nature.

It involves measuring the volume changes or dimensional changes of a substance or system as a function of temperature, pressure, or time.

This technique is commonly used in materials science, chemistry, and physics to study phase transitions, thermal expansion

Explanation

Explanation

Explanation

In diamond, the carbon atoms form a tetrahedral structure with bond angles of 109.5°.

It is characteristic of sp³ hybridization.

Explanation