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Iron-53 has a half-life of 8.51 minutes . After 15.0 minutes, 132 mg remain from the original sample.a) What was the original
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Iron-53 has a half-life of 8.51 minutes. After 15.0 minutes, 132 mg remain from the original sample.a) What was the original
1. 1 answer
2. 94 views
Iron-53 has a half-life of 8.51 minutes. After 15.0 minutes, 132 mg remain from the original sample.a) What was the original
1. 1 answer
2. 79 views
The table shows the data recorded in an experiment after each sample was mixed with water.Sample Observations Sample W layer of
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2. asked by Bray
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A sample consists of the following n � 6 scores: 2, 7,4, 6, 4, and 7. a. Compute the mean and standard deviation for the sample.
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2. asked by Nickie
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an original sample of K-40 has a mass of 25.00 grams. After 3.9x 10 to the ninth years, 3.125 grams of the original sample
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2. asked by micky
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A substance undergoes a first-order decomposition. After 40.0 min at 500 degrees C, only 12.5% of the original sample remains.
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2. asked by Bob
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Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a radiotherapy unit must be replaced when
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2. asked by hannah
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A sample of a radioactive substance decayed to 94.5% of its original amount after a year. (Round your answers to two decimal
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2. asked by kela
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My original sample of mixed salt had a mass of 8.9 grams. After heating the mixture in the crucible and weighing it multiple
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2. asked by bekah
3. 621 views