4.) Calculate the density of carbon monoxide if 22.4 L of Co has a mass of 28.0 g.
a.) 0.800 g/L (arange)
b.) 62.7 g/L (light blue)
c c.) 1.25 g/L (pink)

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

What is the independent variable in this investigation? mass volume sample number substance density

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6