In the first dilution, 10.0 mL of the 1.0-mol/L HCl(aq) solution is brought up to 100 mL with the addition of 90 mL of deionized water. Show how to calculate the new
pH of the solution.

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

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?