Asolution with a ph of 11 has a [h+] of: 11 a. 1 x 10-3 b. 1 x 10-11 c. 1 x 1011 d. 1 x 103 [15 pts]

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by