How can you can tell if a reaction is exothermic or endothermic simply by looking at its
energy diagram?

The clouds are grey and ground is wet. a quantitative b qualitative

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

Label a-f based on the table using c for concentrated and d for dilute