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Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Chemistry, 22.06.2019 14:30
Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous
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Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg
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Chemistry, 23.06.2019 07:20
Which of the following are acids or bases? 1. sodium hydrogen 2. barium hydroxide solution 3. carbonate solution
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Significant numbers in 350.670...
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