Use the idea of bond energy to explain how you can determine whether a reaction is exothermic or endothermic 3-5 sentences

During which time interval does the object travel approximately 10 meters

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Using data from seismic waves, geologists have learned that earth’s interior is made up of several