Al2O3 is an amphoteric oxide, reacting with both acids and bases.

Natural rubber is a polymer made from the latex of rubber trees and is widely used in the production of rubber products.

Natural rubber is a polymer made from the latex of rubber trees and is widely used in the manufacture of rubber products.

Natural rubber is a polymer made from the latex of rubber trees and is widely used in the production of rubber products.

The melting of ice increases the entropy of the system as it transitions from a solid to a liquid state, which has more disorder.

Covalent network solids are typically brittle due to the strong covalent bonds that do not allow for easy deformation.

Ionic solids are typically brittle due to the strong electrostatic forces between the ions, which cause them to shatter when force is applied.

Metallic solids are known for their high electrical conductivity due to the presence of free-moving electrons.

In the reaction 2H2O2 → 2H2O + O2, the oxidation state of oxygen changes from -1 in H2O2 to 0 in O2, indicating that it is both oxidized and reduced.

The reaction C + O2 → CO2 is a redox reaction because carbon is oxidized and oxygen is reduced.

Hydrogenation refers to the addition of hydrogen (H2) to unsaturated hydrocarbons, such as the addition to ethene to form ethane.

Aldehydes can undergo oxidation to form carboxylic acids, reduction to form alcohols, and condensation with alcohols to form hemiacetals.

The ideal gas constant can be represented as R = 0.0821 L·atm/(K·mol) or R = 8.314 J/(K·mol).

Covalent solids exhibit a high degree of anisotropy due to their directional bonding.

Metallic solids have high thermal conductivity due to the presence of free-moving electrons.

MnO4- is a strong oxidizing agent because it can gain electrons and be reduced to Mn2+.

F2 is the strongest oxidizing agent among the halogens due to its high electronegativity and ability to gain electrons.

Alcohols have higher boiling points than alkanes due to the presence of hydrogen bonding.

Not all alcohols are volatile; for example, long-chain alcohols have lower volatility.

Chemisorption involves the formation of strong chemical bonds between the adsorbate and the surface, making it generally irreversible.

Hydrogen is a non-metal at room temperature and does not exhibit metallic properties.

Both statements are true; solutes affect the colligative properties of solvents.

A galvanic cell converts chemical energy into electrical energy spontaneously.

Alkali metals are good conductors of electricity due to the presence of free-moving electrons.

Alkenes are characterized by the presence of at least one double bond between carbon atoms.

Aromatic compounds are characterized by the presence of a benzene ring, which is a stable cyclic structure.

Exothermic reactions release heat to the surroundings, resulting in a negative enthalpy change.

Phenols are stronger acids than alcohols due to the resonance stabilization of the phenoxide ion.

A galvanic cell converts chemical energy into electrical energy spontaneously.

Aldehydes are generally more reactive than ketones due to the presence of the hydrogen atom attached to the carbonyl carbon.