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Questions and Answers
What is the primary requirement for a successful collision in a chemical reaction?
What is the primary requirement for a successful collision in a chemical reaction?
- Reactants must collide with only high energy
- Reactants must collide with sufficient energy and proper orientation (correct)
- Reactants must collide with low energy
- Reactants must collide with low pressure
What is the result of ineffective collisions between reactants?
What is the result of ineffective collisions between reactants?
- Reactants change color
- Reactants change shape
- Reactants are not transformed into products (correct)
- Reactants are transformed into products
How does an increase in temperature affect the rate of a chemical reaction?
How does an increase in temperature affect the rate of a chemical reaction?
- It slows down the reaction
- It stops the reaction
- It speeds up the reaction (correct)
- It has no effect on the reaction
What is the purpose of food additives designated with E numbers?
What is the purpose of food additives designated with E numbers?
What is the process by which light energy is converted into chemical energy?
What is the process by which light energy is converted into chemical energy?
What is the term for the small number in a chemical formula that represents the number of atoms of a particular element in a compound?
What is the term for the small number in a chemical formula that represents the number of atoms of a particular element in a compound?
What is the relationship between pressure and volume at constant temperature and amount of gas?
What is the relationship between pressure and volume at constant temperature and amount of gas?
What is the result of decreasing the volume of a gas at constant temperature?
What is the result of decreasing the volume of a gas at constant temperature?
What is the category of biomolecules that includes carbohydrates?
What is the category of biomolecules that includes carbohydrates?
What is the term for a group of atoms joined together by a chemical bond?
What is the term for a group of atoms joined together by a chemical bond?
What is the term for a small molecule that combines to form a larger molecule?
What is the term for a small molecule that combines to form a larger molecule?
Who is the scientist who investigated the relationship between pressure and volume at constant temperature and amount of gas?
Who is the scientist who investigated the relationship between pressure and volume at constant temperature and amount of gas?
What is the effect of increasing the concentration of reactants on the rate of reaction?
What is the effect of increasing the concentration of reactants on the rate of reaction?
What is the purpose of a catalyst in a chemical reaction?
What is the purpose of a catalyst in a chemical reaction?
What is the effect of decreasing the particle size of reactants on the rate of reaction?
What is the effect of decreasing the particle size of reactants on the rate of reaction?
What is the chemical equation for the rusting of iron?
What is the chemical equation for the rusting of iron?
What is the term for the process by which certain materials deteriorate due to oxidation?
What is the term for the process by which certain materials deteriorate due to oxidation?
What is the role of enzymes in the human body?
What is the role of enzymes in the human body?
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