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How many grams of NaCI would be needed to prepare 50 ml of 0.45 M NaCI solution?
Answers: 1
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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon
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Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory
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Many radioactive atoms that have large masses undergo radioactive decay by releasing a particle that is identical to a helium-4 nucleus. what changes in the original atom are expected as a result of this natural phenomenon? the atomic number and the mass number will decrease. the atomic number and the mass number will increase. the atomic number will increase, and the mass number will decrease. the atomic number will decrease, and the mass number will increase.
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How many grams of NaCI would be needed to prepare 50 ml of 0.45 M NaCI solution?...
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