Chemistry, 09.12.2021 04:40 shannydouglas
Has anyone done 4.3.4 Practice: Mixtures of Matter...I need help :/
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Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
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Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?
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How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
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Has anyone done 4.3.4 Practice: Mixtures of Matter...I need help :/...
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