Which of the following happens during an endothermic chemical change?
Heat is released.
Net...
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Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
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If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
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What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.
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