write the balanced equation for the reaction in which aluminum is added to aqueous manganese(ii) sulfate. you do not need to include states of matter in your answer.

Students will complete the star 360 test once a quarter t or f

Did the universe cool off or get hotter as it expanded after the 'big bang"?

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.