Appollo 13 lunar mission 7
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Chemistry, 21.06.2019 19:30
Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.
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Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
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Chemistry, 22.06.2019 09:00
Identify the electromagnets with poles that are reversed from the electromagnet shown above
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Chemistry, 22.06.2019 21:00
How many neutrons does an element have if its atomic number is 50 and its mass number is 166
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