Chemistry, 28.01.2020 04:31 pierrezonra
Achemical equation is shown below. kno3 → kno2 + o2 what are the coefficients that should be added to balance this equation? use complete sentences to explain your answer. explain how this chemical reaction demonstrates the conservation of mass. question 21 (essay worth 8 points) (04.03 mc) part 1: name the type of chemical reaction that occurs when magnesium chloride solution (mgcl2) reacts with sodium carbonate solution (na2co3). part 2: explain why aluminum (al) would react with copper chloride (cucl2) but not with magnesium chloride (mgcl2). question 22 (essay worth 8 points) (04.07 hc) the table shows the amount of radioactive element remaining in a sample over a period of time. radioactive decay rate amount of radioactive sample (grams) time (years) 45.0 0 31.8 11 22.5 22 15.9 33 11.3 44 part 1: what is the half-life of the element? explain how you determined this. part 2: how long would it take 308 g of the sample to decay to 4.8125 grams? show your work or explain your answer.
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Idon't really understand this can you me and show your work.☺☺[ chemistry b] subject [ electron transfer in lonic bonds]grade( 12)
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Achemical equation is shown below. kno3 → kno2 + o2 what are the coefficients that should be added t...
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