Chemistry, 25.11.2019 08:31 isalih7256
Calculate the average atomic mass of carbon if 98.90% of the atoms are c-12 (12. amu) and 1.100% are c-13 atoms (13.003354 amu). give your answer to the correct number of significant figures.
Answers: 1
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In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.
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Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
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Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
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Calculate the average atomic mass of carbon if 98.90% of the atoms are c-12 (12. amu) and 1.100% are...
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