What is the circulatory do

The circulatory system delivers oxygen and nutrients to cells and takes away wastes

The circulatory system delivers oxygen and nutrients to cells and takes away wastes.

Explanation:

if it is about science its correct :)

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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