Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus in na5p3o10. assume that all the phosphorus atoms have the same oxidation number.
a) +3
b) +5
c) +10
d) +15
e) none of the above is the correct oxidation number

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide

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.