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Chemistry, 22.06.2019 13:30
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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Chemistry, 22.06.2019 15:30
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
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Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 Γ 10-4 millimeters. express each number in an alternate form.
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Social Studies, 16.04.2021 17:50
Chemistry, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Chemistry, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50
Mathematics, 16.04.2021 17:50