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Part I - Items 1-5; Multiple Choice 1. What are the two categories of Matter? a. Mixture & Pure Substance c. Living & Non-living things b. Igeneous & Sedimentary d. Sand & Gravel 2. The following can be classified as Pure Substance, EXCEPT? a. Sedimentary & Metamorphic c. Elements & Celestial bodies b. Elements & Compound d. Compunds & Metamorphic 3. What are the three classification of Elements? a. metals, non-metals, metalloids C. metals, volcanoes, metalloids b. metals, non-metals, rocks d. metals, non-metals, filtration 4. What is the pH value for an acidic solution? a. Less than 7 C. 10 b. More than 7 d. 1 It is another distinctive class of compunds that forms hydroxyl ions (OH) when dissolved in w Water and reacts with acids to form salt and water? a. Acid c. Oxygen b. Base d. Elements​
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