DP Chemistry (first assessment 2025)

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Structure 1. Models of the particulate nature of matter » Structure 1.1—Introduction to the particulate nature of matter

Structure 1.1—Introduction to the particulate nature of matter

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Directly related questions

22N.1A.SL.TZ0.2: What is the change of state for a gas to a solid? A. Condensation B. Deposition C. ...
22N.1A.SL.TZ0.2: What is the change of state for a gas to a solid? A. Condensation B. Deposition C. ...
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?

Sub sections and their related questions

Structure 1.1.1- Elements, compounds and mixtures. Elements are the primary constituents of matter, which cannot be chemically broken down into simpler substances. Compounds consist of atoms of different elements chemically bonded together in a fixed ratio. Mixtures contain more than one element or compound in no fixed ratio, which are not chemically bonded and so can be separated by physical methods. Distinguish between the properties of elements, compounds and mixtures.

19N.1A.SL.TZ0.3: Which is correct? A. Mixtures are either homogeneous or heterogeneous and their chemical...
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?
21N.1A.SL.TZ0.2: Which statement describes all homogeneous mixtures? A. Any sample has the same ratio of the...
19N.1A.SL.TZ0.3: Which is correct? A. Mixtures are either homogeneous or heterogeneous and their chemical...
19M.1A.SL.TZ1.1: Which diagram represents a heterogeneous mixture?
21N.1A.SL.TZ0.2: Which statement describes all homogeneous mixtures? A. Any sample has the same ratio of the...

Structure 1.1.2—Kinetic molecular theory. The kinetic molecular theory is a model to explain physical properties of matter (solids, liquids and gases) and changes of state. Distinguish the different states of matter. Use state symbols (s, , g and aq) in chemical equations.

22M.2.SL.TZ2.8a(ii):
Explain why C₆₀ and diamond sublime at different temperatures and pressures.
22M.1A.SL.TZ2.4:
Which equation represents the deposition of iodine?

A. I₂(g) → I₂(l)

B. I₂(g) → I₂(s)

C. I₂(l) → I₂(g)

D. I₂(s) → I₂(g)
22N.1A.SL.TZ0.2: What is the change of state for a gas to a solid? A. Condensation B. Deposition C. ...
22M.2.SL.TZ2.8a(ii):
Explain why C₆₀ and diamond sublime at different temperatures and pressures.
22M.2.SL.TZ2.a(ii):
Explain why C₆₀ and diamond sublime at different temperatures and pressures.
22M.1A.SL.TZ2.4:
Which equation represents the deposition of iodine?

A. I₂(g) → I₂(l)

B. I₂(g) → I₂(s)

C. I₂(l) → I₂(g)

D. I₂(s) → I₂(g)
22N.1A.SL.TZ0.2: What is the change of state for a gas to a solid? A. Condensation B. Deposition C. ...

Structure 1.1.3 - Temperature and average kinetic energy.
The temperature, T, in Kelvin (K) is a measure of average kinetic energy Ek of particles. Interpret observable changes in physical properties and temperature during changes of state. Convert between values in the Celsius and Kelvin scales.

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