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What fraction of a sample of carbon-14 would remain unchanged after 11,430 years?
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Connect the whole numbers on the periodic table to indicate what they represent?
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When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
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In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i
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What fraction of a sample of carbon-14 would remain unchanged after 11,430 years?...
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