Explanation

Explanation

• A covalent bond is formed between two non-metal atoms. 
• Examples: Molecule formation like H₂O and CO₂.
• Properties: Generally results in lower melting/boiling points compared to ionic compounds.
• These atoms achieve stability by sharing one or more pairs of valence electrons to fill their outer shells

Last updated on 09-03-2026

Explanation

Elements or compounds that combine in a chemical reaction are called reactants.

Explanation

Explanation

A 100% covalent, or "pure," bond exists between atoms of the same elements. 

Explanation

Explanation

• A diluted solution has a low ratio of solute to solvent, meaning it contains less solute.
• It is the opposite of a concentrated solution, which has more solute.
• Diluted solutions are often used when a weaker solution is needed.

Last verified on 08-03-2026

Explanation

• Paper Chromatography is a method used to separate and identify colored substances, especially dyes in a mixture.
• It works based on different rates of movement of substances through absorbent paper with a solvent.

Additional information:

• Filtration – separates solids from liquids.
• Sublimation – separates a solid that sublimes from a mixture.
• Distillation – separates liquids based on boiling points.

Last verified on 08-03-2026

Explanation

• A molecule is the smallest particle of a compound that retains the chemical properties of that compound.
• It is made up of two or more atoms chemically bonded together.
• Molecules can be elements (O₂, N₂) or compounds (H₂O, CO₂).

Last verified on 08-02-2026

Explanation

The correct answer is: Molecules do not collide with one another

Gas molecules:

• Are widely separated
• Have low attractive forces
• Are free to move in any direction
• Collide with one another

Last verified on 08-03-2026