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Zigmanuir
[339]
2 years ago
15
The atomic number is equal to
Chemistry
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Yuri
[45]
2 years ago
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1. “what forms of energy conversions occur during the process of photosynthesis? (How does energy transform?) 2. What is missing from the food web but is essential to maintain equilibrium? A. Soil B.water C. Decomposers D. Oxygen
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Niobium-91 has a half-life of 680 years. After 2,040 years, how much niobium-91 will remain from a 300.0-g sample? 3 g 18.75 g 3
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Amount of Niobium-91 initially
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