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SCIENCE CHAPTER 9,10
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Question | Answer |
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Describe how chemical reactions produce new substances that have different chemical and physical properties | |
Identify four signs that indicate that a chemical reaction might be taking place | |
Explain what happens to chemical bonds during a chemical reaction | |
Interpret and write simple chemical formulas | |
Write and balance simple chemical reactions | |
Classify a chemical equation as one of the four types of chemical reactions | |
Compare exothermic and endothermic reactions | Exothermic reactions give off energy and Endothermic reactions take in energy |
Explain activation energy | Activation energy is the smallest amount of energy needed to start a reaction |
Interpret an energy diagram | |
Describe five factors that affect the rate of a reaction | |
Describe the properties of ionic and covalent compounds | Ionic properties have an easier time dissolving in water that covalent compounds. Ionic compounds take and give off electrons and covalent compounds share electrons |
Classify compounds as ionic or covalent based on their properties | |
Describe 4 properties of acids | Their sour, they have a low pH, |
Describe 4 properties of bases | They are bitter, they have a high pH, |
Identify 4 uses of acids | |
Identify 4 uses of bases | |
Explain the difference between strong acids and bases and weak acids and bases | |
Identify acids and bases by using the pH scale | |
Describe the formation and uses of salts | |
Why are the wetlands/ coastline eroding? | |
Why are the wetlands important? | |
What is being done to help restore the wetlands |