I a have a broad background in chemistry so I know the basics. I was looking at a tanning product and this was the guy's big claim "All these ingredients have high pH levels of over 6! What does this mean? A pH of over 6 is the COLOR ORANGE!" Now, I wasn't aware that pH could change the color of...
Hmm, yes I remember doing these(not how, heh), never understood the use of them then. So this will work when I have 3 sum of the forces equations in physics when there is more than one unknown?
Can you show me how you would go about solving this one?
u=.065,m=2.5,a=0.12,g=9.8...
Well, my physics teacher loves to make his problems hard, so he makes the physics portion of the problem med difficulty but he makes it so you have to solve with more than 1 unknown present. With big problems on forces I get lost in the algebra so.. I'm trying to improve my algebra skills. If...
1. Calculate the dense areas around the central atom in the bond. This includes lone pairs. Count each grp as 1. For example, h2c2 has 4 total bonds around each c atom. But there's a triple bond, so there is NOT 4 dense areas, there is 2. One on each side. Thus, it would be linear, 180 degrees...
I was looking at how a problem was solved and what I did not get was why T was put in this equation or n. I'm a little confused on the tension stuff. I do get how friction works and it's coefficiant. n and T is confusing me. The n is the weight of the object on the surface, I know, but why is it...
Okay, I have this equation and I want to solve for v, so basicaly it's really just an algebra problem.
Original equation
20=(v)sin(35)*(159/v)+.5(-9.8)(159/v)^2
v^2=(sin(35)(159)+.5(-9.8)(159^2))/20<-- what I do, then I take it to the ^(1/2)
The answer should be 42, but I keep...
spdf are subshells as I stated above. Each have a set number of orbitals. Yes, you are correct that an element doesn't have a charge until it forms an Ionic bond, making this element an ion.
Definitely get your mistakes under control because when you get in higher level courses the professors try to trick you and if you don't pay attention to detail you get screwed. I keep getting screwed on my chemistry tests. I know the stuff so well but she words it so crazy. In calculus it gets...
Well, I'll try to help a little, from what I remember. I'm assuming you haven't gotten into valence electrons yet, eh? Or the spdf subshells. An atom is made up of subshells which include spdf. Inside these subshells are orbitals. Orbitals can hold up to 2 elections each. An s subshell has one...
I just started doing some problems and this basic pm problem is giving me a lot of trouble.
If a ball was throwen horizontally with 45.08 m/s, how far would the ball fall vertically by the time it reached home plate, 18.28m away?
The initial velocity is 45.08 m/s. Now that is the x and y...
Hello, I was doing the chapter review and a few problems gave me trouble. I forgot this is the wrong forum, err, please move it, I am sorry.
1.) Runner A is initially 4.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h due east. Runner B is initially 3.0 mi east of...
I'm doing a review for my math class and came upon some that I cannot figure out.I don't know why I cannot get the right answer. I know all the rules, I've had tests on this stuff and received A's but these are different for some reason and I don't know why. If anyone can do even one of them I...