NeonAnt

We used this decive in high school. It was just a keyboard with a small screen were you could see the line that you were typing. It had an USB port, and you could hook it up to a computer to download your file onto a computer. Does anyone know the name of this device, or where I could purchase something similar? The device I specially remember was blue if that helps jog any memories. Thank you so much!

dy/dt=1-t+y-ty

I know that I need to get it to

dy/-y-1=(-1+t)dt, but how do I get it to separate like this? Thank you!

The figure (which is not pictured, sorry) shows the slope field for y =.2(9-y^2). Make a sketch of the solution using the initial value y(-4)=-2. Find the function f(x) that this solution curve is approaching as x-->infinity.

I need help with finding the function f(x) that the solution curve is approaching as x-->infinity. Thank you!

The base of a solid is the unit circle x^2 + y^2 = 4, and its cross-sections perpendicular to the x-axis

are rectangles of height 10. Find its volume.

Note: when I tried to do it I took the integral of the volume of the rectangle which I go to be 10*sq(4-x^2) but I know that is wrong. Please help!

There is a black spot in the left hand corner and lines running vertically and horiztonally on the screen. How do I fix this?

You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the pre-distilled mixture?

There s this guy that I have been texting for awhile. We had gone on a couple of dates, which all went well, so we were somewhat "dating." Things have been weird lately, so I asked him. He said he didn t know what he wanted and he needed to figure stuff out, so he didn t know what we were doing anymore. After that conversation, we ignored the topic and talked for normal for a few days. Now he hasn t responded, which is unlike him because he usually texts me multiple times even if he hasn t heard from me. I really like this guy. Should I text him, or should I take this as he wants space? And if he says he needs to figure things out, does that mean he isn t interested because if he was, he would already know? This has been on my mind a lot lately, and I would appreciate any input. Thanks!

I know it has an alcohol, but does it also have an arene (aromatic)?

Should I write the net ionic:

3Cu(s)+8H++2NO3- -->3Cu2++2NO+4H2O

or should I write this equation:

3Cu+8HNO3-->3Cu(NO3)2+2NO+4H2O

Thanks!

Consider the reaction 2C3H6 + 9O2 6CO2 + 6H2O. If the rate at which C3H6 is reacting is 0.40 mol liter−1s−1, then the rate at which

1. O2 is reacting is 1.6 mol liter−1s−1

2. CO2 is being formed is 0.40 mol liter−1s−1

3. H2O is being formed is 0.80 mol liter−1s−1

4. CO2 is being formed is 1.2 mol liter−1s−1

5. H2O is being formed is 1.6 mol liter−1s−1

6. none of the previous answers is correct

1) A solution of strong electrolyte will always have a higher conductivity than a solution of weak electrolyte.

2) A solution of strong acid will always have a lower ph than a solution of weak acid.

Notes:

For number 1) I at first thought the answer was true, but now I'm wondering if concentration affects conductivity. For example if you had a .01 M of strong electrolyte and 1 M of weak electrolyte, so you possibly had the same amount of ions then they would be equally conductive. I'm not sure if that's correct though.

I think it is direct, but I would like confirmation