Picture is showing Apparatus for the Experimental Verification of Law of Conservation of Mass. The unchanged mass of the conical flask before and after the reaction supports the Law of Conservation of Mass. This experiment highlights the importance of precise mass measurements, contributing to the understanding of Lavoisier’s Law of Constant Proportions. Variations of this experiment can be conducted using different combinations like copper sulphate with sodium carbonate, barium chloride with sodium sulphate and lead nitrate with sodium chloride.
1 : Matter is anything that occupies _______ and has _______.
2 : A _______ is a homogeneous material with a consistent composition.
3 : Solids maintain a _______ shape and _______ volume.
4 : When solids turn into liquids, this process is known as _______ or _______.
5 : The _______ point of a pure substance remains consistent and can be a metric to ascertain its purity.
Total Questions: 5
Correct:
- Matter is anything that occupies _______ and has _______. :space, mass
- A _______ is a homogeneous material with a consistent composition. :substance
- Solids maintain a _______ shape and _______ volume. :fixed, volume
- When solids turn into liquids, this process is known as _______ or _______. :melting, fusion
- The _______ point of a pure substance remains consistent and can be a metric to ascertain its purity. :melting
The Kinetic Molecular Theory explains that matter is made up of tiny particles (atoms or molecules) that are in constant motion. In solids, particles are closely packed and vibrate in fixed positions. In liquids, particles are more spaced out and move around each other. In gases, particles are far apart and move freely. This theory helps explain the behaviour of solids, liquids and gases by describing how their particles move and interact with each other.
The boiling point of a liquid is the temperature at which it changes from a liquid to a gas throughout the entire liquid. Determining the boiling point is significant because it can help identify substances and assess their purity. It also provides information about the substance’s behaviour under different conditions.