Jaleesa draws a model of a chemical reaction between two substances. She uses a black circle to represent one kind of atom and a white circle to represent another kind
of atom.

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

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

How many neutrons does an element have if its atomic number is 50 and its mass number is 166