Chemistry, 14.07.2020 01:01 elarracadas22
Stalactites and stalagmites in most caves are made of limestone (calcium carbonate). The presence of calcium sulfate is explained by the following sequence of reactions. a) H2S (aq) + 2 O2 (g) β H2SO4(aq) b) H2SO4 (aq) + CaCO3(s) β CaSO4 (s) + H2O (L) +CO2 (g) Which (if either) of these reactions is a reduction oxidation reaction? Identify the substance oxidized and substance reduced, and the oxidizing agent and the reducing agent.
Answers: 1
Chemistry, 22.06.2019 04:30
Turbo the snail moves across the ground at a pace of 12 feet per day. if the garden is 48 feet away, how many days will it take for the snail to get there?
Answers: 2
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) β co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) β co2(g) k=1.363Γ10^69 b. 2 h2(g) + o2(g) β 2 h2o(g) k=1.389Γ10^80 c. 2co(g) + o2 (g) β 2 co2(g) k=1.477Γ10^90
Answers: 1
Chemistry, 22.06.2019 22:30
Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt
Answers: 1
Stalactites and stalagmites in most caves are made of limestone (calcium carbonate). The presence of...
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