Min is asked to balance the equation below.
original: ca3p2 + h2o → ca(oh)2 + ph3
min’s result: ca3p2 + h2o → ca3(oh)2 + ph3
which best describes min’s method for balancing the chemical equation?
it is correct, because now there are three ca atoms on each side of the equation.
it is incorrect, because the identity of the original product has changed.
it is correct, because ca3(oh)2 creates a more stable compound.
it is incorrect, because the subscript “2” should be added instead.

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Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.