Chemistry, 29.09.2020 05:01 alisonlebron15
if the half-life of substance A is 0.5 years, how long would it take an 2 gram sample of substance A to remain given an initial mass of 16 grams?
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Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?
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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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if the half-life of substance A is 0.5 years, how long would it take an 2 gram sample of substance A...
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