Chemistry Cumulative Exam Review Questions and Answers 100% Pass
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Course
Chemistry Cumulative
Institution
Chemistry Cumulative
Chemistry Cumulative Exam Review
Questions and Answers 100% Pass
To identify an element, which of the following properties is the most reliable?
The number of protons within its nucleus.
- The total neutrons found in the nucleus
- The quantity of isotopic variations
- The charge count of it...
1 Chemistry Cumulative Exam Review Questions and Answers 100% Pass To identify an element, which of the following properties is the most reliable? ✔✔The number of protons within its nucleus . - The total neutrons found in the nucleus - The quantity of isotopic variations - The charge count of its ions What feature characterizes an Arrhenius base? ✔✔It releases hydroxide ions into aqueous solutions. - It donates electrons to form covalent bonds - It accepts protons from acids - It generates a conjugate acid after a reaction What distinguishes isotopes? ✔✔They are variations of the same element with differing neutron numbers. - Different elements with identical neutron co unts - Different elements with the same proton numbers 2 - Different forms of the same element differing in proton count According to Le Chatelier's principle, how does pressure change influence equilibrium in a chemical reaction? ✔✔It affects equil ibrium if gaseous reactants or products are present. - It doesn’t impact equilibrium if all substances are in solid form - It doesn’t impact equilibrium if all substances are in liquid form - It doesn’t impact equilibrium if there is a mix of solid a nd liquid phases What is a probable result of a forest fire? ✔✔It often forces species to migrate. - Extinction - Adaptation - Speciation Which example indicates a long -term change in the environment? ✔✔Global climate change. - La Niña
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