Podcast Beta
Questions and Answers
Which step of the scientific method involves designing and performing experiments to test the hypothesis?
What are the four elements that make up about 96% of the weight of most living organisms?
What is the formula for finding the number of neutrons in an atom?
What type of bond is a substance consisting of two or more different elements in a fixed ratio?
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What is the importance of chemical elements to living organisms?
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What step of the scientific method involves making an observation?
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What kind of bond involves the transfer of electrons between two atoms?
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Which type of bond involves the sharing of electrons between two atoms?
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What is the substance that gets dissolved in a solvent to form a solution?
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What is a substance consisting of two or more different elements in a fixed ratio called?
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Which type of bond involves the partial positive charge on hydrogen and is responsible for high surface tension in water?
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What substance minimizes changes in pH and helps maintain a stable pH level in a solution?
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What is the range of the pH scale, with 0 being the most acidic and 14 being the most basic?
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Which four elements make up about 96% of the weight of most living organisms?
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What term describes substances that cannot be broken down into other substances?
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What kind of isotopes decay spontaneously, giving off particles and energy?
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