Which element has four energy levels?
cesium (Cs)
rubidium (Rb)
potassium (...
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Chemistry, 22.06.2019 04:30
The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
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Chemistry, 22.06.2019 12:00
What is the subscript for oxygen in its molecular formula
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Chemistry, 22.06.2019 17:10
Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth
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Chemistry, 22.06.2019 22:30
Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?
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Biology, 27.07.2019 00:00
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