Can this reaction take place/does it exist -
cacl2+co2+> caco3 + 2hcl

How have the greenhouse gasses increased from the year 2000 to 2018

One similarity and one difference between an element and a mixture of elements

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.