new american gov't 2
Over time, _____ has gained power at the expense of
the angle of depression from D to F measures 40 degrees. If EF= 14 yd, find DE. round answer to nearest 10th
John wants to put a lace edge around a square piece of cloth. If the cloth is 4 inches wide on one side, how long of a piece of lace should Melina cut?
Use your value for the heat of neutralization, ∆H, -9490, to determine the amount of heat evolved when 10.00mL of 0.4091 M HCL reacts with 10.00mL of 0.4037 M NaOH.
yes, Al3+ sorry. so the moles=.01380. Could you help with the equation?
0.3724 g x 26.98MW = 10.05 mol -538.4kJ x 10.05 mol = -5410 kJ/mol 5410 kJ/mol of heat is evolved?????
The standard enthalpy of formation of Al3-(aq) is -538.4kJ/mol. How much heat is evolved when 0.3724 g of Al(s) reacts with excess hydrochloric acid?
Brad rides his bike 20 km. He covers the distance in 45 minutes (0.75 hours). What is his speed in kilometers per hour? A.44 km/hr B.15 km/hr C.9.0 km/hr D.27 km/hr
find the second derivative of f(x)=3/(x^2+12)
when rounding to the nearest cent does it have to be to right or left or does it matter?