Which statement is true? A. An object in motion must always go straight. B. An object in motion must always change direction. C. An object in motion might change direction. D. An object in motion might be sitting still.

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.