Chemical signs and symbols
[DOC File]Chemical Reactions
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Chemical Reactions-A process by which the atoms of one or more substance are rearranged to form different substances.-Also known as a chemical change. Signs of a Reaction. 1.Temperature change. 2. Color change. 3. Odor. 4. Precipitate is formed (solid) 5. Gas is formed. Types Reactions-There are five main types of chemical reactions.
[DOCX File]Chapter 3 Questions
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a)work in a chemical hood when using them. b)avoid breathing the vapors by holding beakers and flasks at arm’s length. c)wear a common dust mask. d)always keep beakers, flasks and bottles of the chemical capped or covered. 6.Which definition is not correct? a)Mists …
[DOC File]Understanding Hazardous Chemical Labels
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Understanding Hazardous Chemical Labels. Overview. This fact sheet provides information on how to understand the new labelling system for hazardous chemicals under the WHS Regulations. By reading, understanding and following all of the information and instructions on a chemical label, all chemicals should be able to be used safely in the workplace.
[DOC File]Evidence for Chemical Change
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Substances may be created by chemical change and may also undergo chemical change. If a substance is produced as a result of a chemical change, or reaction, it is called a product. ... What are some common signs of chemical change? Data Table: ... Use state symbols for each substance (aq for aqueous solution, cr for solid, g for gas, l for ...
[DOC File]Emergency Action Plan (Template)
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When a Small Chemical Spill has occurred: • Notify the Emergency Coordinator and/or supervisor (select one). • If toxic fumes are present, secure the area (with caution tapes or cones) to prevent other personnel from entering. • Deal with the spill in accordance with the instructions described in the MSDS.
[DOC File]Worksheet: What are the symbols for the Elements
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Symbols are signs that stand for something else. Here are some symbols that you may know: $ % @ & #. What does each one stand for? There is a symbol for each of the 106 chemical elements. There are 106 symbols because there are 106 elements. The symbols for …
[DOC File]COMMON ELEMENTS & THEIR USES
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A gas used in many lights & signs 16) Nickel Ni A metal used in coins 17) Nitrogen N The main gas in the air, also used in fertilizers 18) Oxygen O A gas necessary for respiration; aids burning 19) Platinum Pt An expensive metal used in jewelry 20) Potassium K Found in fertilizers 21) Silicon Si
[DOC File]Chemistry Enhanced Scope & Sequence
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coefficients, chemical symbols, and subscripts; illustrate how negative and positive ions are formed and how to represent them; summarize the following concepts about ionic bonding: Ionic bonds involve the transfer of electrons. Ionization energy is the amount of energy needed to remove an electron from an atom in the gas phase.
[DOC File]Laboratory Safety Symbols and Rules
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Chemical Safety: Never touch, taste, or smell, any questionable chemicals in the laboratory without the teacher’s permission. Only as instructed by the teacher, gently wave your hand over the opening of a container toward your nose. Do not inhale fumes directly from the …
[DOC File]SAMPLE PROGRAM FOR USERS OF HAZARDOUS CHEMICALS …
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C) The Physical Hazards of the chemical, including potential for fire, explosion and reactivity. D) The Health Hazards of the chemical, including signs and symptoms of exposure, and any medical conditions which are generally recognized as being aggravated by exposure to the chemical. E) The Primary Route(s) of Entry.
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