Chem 12 homework Does anyone know how to balance these using the oxidation number method? As4 + NaOCl + H2O -> H3AsO4 + NaCl MnO4(-) + HN3 + SO4 (2-) -> MnSO4 + N2
Chem 12 homework Does anyone know how to do these? o.o Determine if the following solutions are acidic, basic or neutral. Completely justify your answers. g) NH4H2PO4 (fertilizer) j) MgO (Phillips Milk of Magnesia)
Calculus Help Which of the following are true? Every absolute minimum is a local minimum. If f is continuous on a closed interval (ab), then f attains an absolute maximum value f(c) and an absolute minimum value f(d) at some numbers c and d in (ab). If f(c)=0, the f has a local maximum or minimum at c. The function f(x)=x has no critical points on the interval (negative5,5). If f has a local maximum or minimum at c, then c is a critical number of f. If f has an absolute minimum value at c, then f(c)=0.
Calculus continuity question Does anyone know how I solve this? o.o
Help with Discrete Math homework So I'm supposed to simplify the following statement, but I'm not sure if where I finished off is the final simplified version or if there's a more simplified version of it: not ( p ^ ( q v r ) ^ ( ( p^ q ) -> r ) ) = not ( p ^ ( q v r ) ^ ( p -> r ) Rule of Simplification = not ( ( p ^ q ) v ( p ^ r ) ^ ( p -> r ) ) Distributive laws = not ( p v ( p ^ r ) ^ ( p -> r ) ) Rule of Simplification = (not sure about this step) not p ^ not (p ^ r ) v not ( p -> r ) Multiplied not by everything inside I just started this class so I have no idea if what I'm doing is right or wrong. xD Thanks in advance.
Physics homework help At what angle must a gun be fired in order to hit a target 5000m away if the muzzle velocity of the gun is 1200m/s?
Help with Chem 12 homework? I understand what activation energy is, but I don't know how I'm supposed to know what the question asks :( Discuss the activation energy for the collision of molecular chlorine (Cl2) with molecular hydrogen (H2), and for the collision of atomic chlorine (Cl) with molecular hydrogen (H2). Which reaction must have the greater activation energy, and what evidence can be used to support your argument?
Help with Calculus homework please Not sure if it's the same with other schools, but it's in the Mean Value Theorem and Curve Sketching chapter. The question is: Find the point on the hyperbola y^2 - x^2 = 4 that are closest to the point (2,0). And here's a screenshot of what my teacher posted for the answer: What I don't understand is where did that big square root thing come from in the 4th line down, and why does it disappear in the line below that? o.o
Help with permutations Does anyone know how to solve this? I know that 9P7 = 9!/(9-7)!, but how do I incorporate the fact that there are repeating letters into the equation? How many strings with seven characters can be formed from the letters in EVERGREEN?
Physics Homework Help Can anyone on Basil explain how to solve this? I just don't get it :~( A ball is thrown from the top of a 12m cliff with an initial velocity of 36m/s at an angle of 40degrees above the horizontal. a) How far from the base of the cliff does the ball land? (answer is 140m) b) What is the velocity of the ball at the moment of impact? (answer is 39m/s, 45 degrees below horizontal) Thanks. :D
Help in Python So I just started programming in university and we're using Python. I tried using the square root function, because I need to for an assignment but for some reason it doesn't seem to be working... Anyone know what might be the problem? o.o
Is this grammatically correct? I am a human that has befriended a member of the canine family; I am dog's best friend. I'm not sure if I used the semicolon correctly, and if I didn't what would be the right thing to put there? Also, does that sentence sound right to you guys? I thought it sounded ok, but after re-reading it like 20 times, it's starting to sound a little weird xD
Calculus help I can't seem to be able to solve this D: If f(x) = x^5 + x^3 + x, find f^-1(3). f^-1 being the inverse function.