Understanding Chemistry: Elements, Molecules, Compounds, and Mixtures Flow Chart

In the world of chemistry, elements are the building blocks represented on the Periodic Table, while molecules and compounds are formed by atoms bonding together. Mixtures, on the other hand, involve a combination of substances without chemical bonding. Physical and chemical properties define matter, and pure substances cannot be further broken down. This flow chart visually illustrates the relationship between atoms, mixtures, elements, matter, and various properties in the realm of chemistry.

• Chemistry
• Elements
• Molecules
• Compounds
• Mixtures

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1. Elements Atoms are the smallest part of an element. For Example: If you have a piece of gold and cut it into smaller and smaller pieces, you would eventually reach a point where you couldn t cut the gold up any smaller. That smallest piece would be an atom of gold. Elements are made of like atoms. Elements cannot be separated into simpler substances. All elements are located on the Periodic Table of Elements. An element is a pure substance, because it cannot be cut up any more and still be the same thing. All elements have a chemical symbol. Task: Look on the PTOE, and write down the names of any 3 elements and its chemical symbol.. 1. Element Name: ____________ Chemical Symbol: __________ 2. Element Name: ____________ Chemical Symbol: __________ 3. Element Name: ____________ Chemical Symbol: __________

2. Molecules Molecules are made up of atoms. Atoms of a molecule can all be the same or different. If the molecule is an element, then all the atoms bonded together are the same. If the molecule is a compound, then different types of atoms are bonded together. Molecules are pure substances, because a molecule cannot be cut up any more and still be that substance. For example, one small tiny piece of sugar, that can not be cut up any more, is a molecule of sugar. All molecules have a chemical formula. A chemical formula is a specific number and type of atoms that makes up a type molecule. Task: Correctly match the name and chemical formula to the correct molecule. Water (H20) = H + H + O Oxygen (O2) = O + O

3. Compounds Compounds are made of two or more different types of atoms. All compounds can be molecules, but not all molecules can be a compound. Compounds are pure substances because a compound cannot be cut up any more and still be that substance. All compounds have a chemical formula. Example: H2 O Task: 1. Which chemical formula represents a compound? CO2or H2 2. Which picture is a compound?

4. Compounds and Molecules can only be separated during a chemical change. Mixtures can be separated by physical means.

5. Mixtures Mixtures do not have a chemical formula. In other words, no specific recipe. For example, a salad is a mixture, I could add more tomatoes to my salad than you do, but I still have a salad. 2 Types of Mixtures: Homogeneous the same throughout, cannot see the individual parts. Example: milk *Solution a homogeneous mixture. Example: sugar water Heterogeneous Not the same throughout, can see the individual parts. Example: Cinnamon and Sugar Mixture

6. Create a flow chart with the following terms: Atoms Mixtures Elements Matter Physical Properties Chemical Properties Pure substance Heterogeneous Molecules Compounds Solutions

7. Quiz will follow video... Elements and Compounds Video Go to: Kahoot.it