Chemistry, 03.07.2020 19:01 alyssa9778
A particular reactant decomposes with a half-life of 113 s when its initial concentration is 0.372 M. The same reactant decomposes with a half-life of 223 s when its initial concentration is 0.189 M. Calculate the rate constant (k) and reaction order?
Answers: 2
Chemistry, 22.06.2019 08:00
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
Answers: 2
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ā co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) ā co2(g) k=1.363Ć10^69 b. 2 h2(g) + o2(g) ā 2 h2o(g) k=1.389Ć10^80 c. 2co(g) + o2 (g) ā 2 co2(g) k=1.477Ć10^90
Answers: 1
A particular reactant decomposes with a half-life of 113 s when its initial concentration is 0.372 M...
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