Physical and Chemical Properties of Matter
We are all surrounded by matter on a daily basis. Anything that we use, touch, eat, etc. is an example of matter. Matter can be defined or described as anything that takes up space, and it is composed of miniscule particles called atoms. It must display the two properties of mass and inertia.
The different types of matter can be distinguished through two components: composition and properties. The composition of matter refers to the different components of matter along with their relative proportions. The properties of matter refer to the qualities/attributes that distinguish one sample of matter from another. These properties are generally grouped into two categories: physical or chemical.
Figure 1: Visual With Examples. Content from S.M.
Physical (Properties and Changes)
A physical property is one that is displayed without any change in composition. (Intensive or Extensive)
Change in which the matter's physical appearance is altered, but composition remains unchanged. (Change in state of matter)
Example: When liquid water (H2O) freezes into a solid state (ice) -- It appears different/changed; However, the composition is still: 11.19% hydrogen and 88.81% oxygen by mass.
Figure 2: States of Matter
Chemical (Properties and Changes)
Chemical Property: Any characteristic that gives a sample of matter the ability/inability to undergo a change that alters its composition.
Examples: Alkali metals react with water; Paper's ability to burn.
Chemical Change: Change in which one or more kinds of matter are transformed to new kinds of matter with altered compositions.
(Or Chemical Reaction):
[With higher knowledge of these different properties and changes, we receive a better understanding of the nature of different samples of matter that exist. Using the components of composition and properties, we have the ability to distinguish one sample of matter from the others.]
1. Milk turns sour. This is a ________________
2. HCl being a strong acid is a __________, Wood sawed in two is ___________
3. CuSO4 is dissolved in water
4. Aluminum Phosphate has a density of 2.566 g/cm3
5. Which of the following are examples of matter?
6. The formation of gas bubbles is a sign of what type of change?
7. True or False: Bread rising is a physical property.
8. True or False: Dicing potatoes is a physical change.
9. Is sunlight matter?
10. The mass of lead is a _____________property.
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