Explanation

• Tartaric acid is a white, crystalline organic acid that occurs naturally in many fruits, most notably in grapes and tamarinds.
• It also found in bananas, avocados, and citrus fruits.

Explanation

• The given reaction, CaO + CO2 → CaCO2, is an example of a Combination Reaction, also known as a Synthesis Reaction or Addition Reaction.
• In this reaction, two substances, calcium oxide (CaO) and carbon dioxide (CO2), combine to form a single compound, calcium carbonate (CaCO2).

Explanation

• When an atom gains or loses electrons, it becomes an ion.
• If it gains electrons, it becomes a negative ion (anion).
• It it loses electrons, it becomes a positive ion (cation).

Explanation

• The atomic number (Z) is the number of protons present in the nucleus of an atom.
• It determines the identity of an element.
• It is a unique identifier for each element.

Explanation

Nitrogen (N) occurs free in nature as diatomic nitrogen gas (N2).

It makes up about 78% of Earth's atmosphere and is a major component of air.

The other elements mentioned—antimony (Sb), arsenic (As), and phosphorus (P)—are typically found in combined forms rather than in their free elemental states in nature.

They commonly occur in various compounds and minerals.

Explanation

Asbestos is a naturally occurring mineral that was widely used for its fire-resistant properties.

It is made up of fine, durable fibers that are resistant to heat, fire, and many chemicals

Asbestos was used in fireproof clothing, such as firefighters' suits

Due to its ability to withstand high temperatures and prevent combustion

Explanation

• Suspensions are mixtures in which the solute particles are dispersed throughout the solvent, but are not dissolved.
• The particles are visible to the naked eye and settle out of the mixture over time.
• Examples: Muddy water, milk and blood.

Explanation

• Salt (a solid) dissolves in water (a liquid) to form a solution.
• Making it a classic example of a solid-liquid solution.

Explanation

Matter changes state from:

• Solid to liquid (melting) when it gains energy
• Liquid to gas (vaporization) when it gains energy

This is because the particles need more energy to break free from their rigid structure in solids and move more freely in liquids, and even more energy to escape into the air as gases.

Explanation

• Solids, liquids, and gases can mix together to form a mixture.
• Which is a physical combination of two or more substances in which each substance retains its chemical properties.