Chemistry
I need this answered really fast. 4. Ethylene glycol (C2H6O2) is used as an antifreeze in cars. If 400 g of ethylene glycol is added to 4.00 kg of water, what is the molality? Calculate how much the freezing point of water will be lowered. The freezing-point depression constan...
Chemistry
Use Hess's Law to find the change in heat of 2C(graphite)+H2(g)-->C2H2(g)? Given: C(graphite) + O2(g) --> CO2(g) change of heat rxn = -393.5 kJ 2H2 (g) + O2(g) ---> 2H2O (l) change of heat rxn = -571.6 kJ 2C2H2 (g) +5O2(g) ----> 4CO2(g) +2H2O (l) change of heat...
Calulus
At what interval is 2x^3+0x^2-54x+6 increasing?
chemistry
can you convert the grams to liters of water using the conversion factor of 22.4 liters in one mole?
physics
A block of mass 8.50 is sliding along a smooth surface when it encounters a 0.800 long region of roughness with =0.310. The block emerges from the rough patch at a reduced speed of 5.00 and continues on.
physics
A solid disk of radius 6.50cm and mass 1.65kg , which is rolling at a speed of 2.60m/s , begins rolling without slipping up a 10.0 slope.How long will it take for the disk to come to a stop?
orchestra programs????????
orchestra programs for teens in rockland county??? like a group of teens playing songs and they perform it (concert)
theology class????
I'm Christian and I'm applying to a catholic high school (due to the budget cuts in my district). The thing is that I'm required to take theology (Religion class) for four years of high school. ... I'm just wondering, it's theology interesting, fun... and s...
distributive property
What is the answer to this problem -7(10+7f)
Algebra
Find the distance d(P1,P2) between the points P1 and P2 P1=(-1,5);P2=(2,4) d(P1,P2)=
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