States of matter
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This document discusses the three states of matter - solid, liquid, and gas - and the properties of density. It describes a candle burning activity where the solid wax turns to liquid and then gas as smoke. Students will conduct experiments with density towers to observe which substances, such as ethyl alcohol, water, and cooking oil, stay above or below each other due to their densities. Homework includes bringing materials like syringes and wires for experiments on the properties of matter during the next meeting.
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1. Definitions of key terms like elements, compounds, physical and chemical properties and changes.
2. An overview of the major branches of chemistry like organic, inorganic, physical and analytical chemistry.
3. Descriptions of the periodic table, including groups like alkali metals and halogens, and periodic trends.
MATTER AND MEASUREMENT
The document discusses key concepts in chemistry including matter, atoms, elements, compounds, mixtures, and the three states of matter. It defines matter as anything that has mass and takes up space, and explains that atoms are the building blocks of matter. Elements are substances made of only one type of atom, while compounds are made of two or more different elements chemically bonded together.
10.20.08 D1 Physical Chemical
Day 1's objectives were for students to take a pre-test on physical and chemical properties, describe and classify those properties, and take an exit quiz. Students were assigned homework to identify physical and chemical properties of kitchen items and make observations about items in their refrigerator. During class, students observed and recorded properties of a human and demonstration, then took notes dividing a page into physical and chemical properties.
Classification of Matter
The document defines matter and describes its three common states: solid, liquid, and gas. It distinguishes between physical and chemical properties of matter, and between physical and chemical changes. It defines mixtures and pure substances, and classifies matter as homogeneous or heterogeneous. Key terms include the various states of matter, physical and chemical properties, and the classification of matter.
Matter and materials (II) Paticles that substances are made up of
Particles that substances are made up of can be atoms, molecules, or ions. Atoms are the basic building blocks of matter that combine to form elements or compounds. Elements are either monoatomic like hydrogen gas or diatomic like oxygen gas. Compounds contain two or more different elements combined in fixed proportions. The molecular, empirical, and structural formulas are used to represent compounds. Substances can have covalent, ionic, or metallic bonding that results in different macroscopic properties. Chemical and physical changes can be distinguished based on whether atoms are rearranged. Chemical reactions involve energy absorption or release as bonds are broken and formed.
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Matter and materials (II) Paticles that substances are made up of
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