Which of the following correctly ranks the elements from least to greatest electronegativities? O O O O Se OS

What is the value of keq for the reaction expressed in scientific notation

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Asolid that forms and separates from a liquid mixture is called