Given the following reaction at equilibrium at 450.0 °C:

CaCO 3 (s) ⇌ CaO(s)+CO 2 (g)

If pCO 2 =0.0160 atm, K c = ?

A) 0.0160
B) 0.0821
C) 2.45 x 10-3
D) 2.70 x 10-4
E) 2.72 x 10-4

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

Why is it important for scientists to replicate each other’s experiments? to determine if important scientific results are repeatable to the research of other scientists to determine if slight alterations in the experiment can affect the result to further their own research