Indicate with a plus sign (+) any of these processes that require energy and a negative sign (-) any that release energy. (a) arctic ice melting (d) dry ice changing to vapor (b) starting a car (e) blowing up a balloon (c) flash of lightning

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Which sample at stp has the same number of atoms as 18 liters of ne at stp