A barometer is used to measure air pressure or a change in pressure readings. In order to measure an air pressure change, the set pointer was placed the reading pointer. Then, the difference in pressure can be read after a certain amount of time by determining how much the reading pointer has moved

Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

Classify this reaction: 2al+n2-> aln.