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32. A sample of potassium is composed of 23% K-39, 48% K-40 and the remainder K-41. Calculate the average mass of the sample.
Answers: 2
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Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?
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Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate
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Pls ill give u brainliest which of the following is true about science? 1. political conditions are unable to influence it. 2. economic concerns may prevent it from solving problems.
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32. A sample of potassium is composed of 23% K-39, 48% K-40 and the remainder K-41. Calculate the av...
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