Karl

This page lists questions and answers that were posted by visitors named Karl.

Questions

The following questions were asked by visitors named Karl.

In a lab, we added NH3(aq) to CuSO4(aq), and the solution turned dark blue with a precipitate. The problem is that the products ( Cu(NH3)4 and SO4) should be soluble, no? The question is then, what is the percipitate? The ppt is Cu(OH)<sub>2</sub>. The da...

I cannot figure out how to turn fraction into decimals.Sample 8 over 25.Also turning decimals into fractions 0.65

My school gives out these pop quizzes and this bonus quiz asks this question: what does polyvinylrododospagaspamomo mean? please help! sincerely, Karl

my P.E. teacher asked the 100 seventh graders in my school if they could swim. Half of the boys and two thirds of the girls said yes. Seventeen boys said no. How many seventh graders know how to swim?

A motorcycle and 66.0 kg rider accelerate at 2.0 m/s2 up a ramp inclined 5.0° above the horizontal. What are the magnitude of (a) the net force on the rider and (b) the force on the rider from the motorcycle?

M Varies jointly with A and T and inversley with H. Write and equation that represents the relationship.

The rounded numbers all range from the hundred thousands to the millions. Which place-value should be used as intervals for a scale for the graph?

A box, open at the top, in form of a cube of edge length 40 cm, is constructed from a metal plate. Find the coordinates of the center of mass of the box with respect to x, y, and z coordinate system.

A shuffleboard disk is accelerated to a speed of 5.6 m/s and released. If the coefficient of kinetic friction between the disk and the concrete court is 0.29, how far does the disk go before it comes to a stop? The courts are 15.7 m long.

A 100 m long wire with a cross-sectional area of 4 mm2 has a resistance of 6 ohms. What is the resistivity of the material of the wire in Ùm?

Please help, I need help on these two problems. Solve the equation. log3(x − 16) = log3(9x) e^1 + ln(7) It appears on the homework that the ln(7) is written like this ^ln(7) but I am still stuck on it. Thanks!

Hello, I'd like to know how in developing, factoring or simplifying, we can move from: goo.gl/zZdzSs ACDE are strictly positive real constants. I is an imaginary number.

Hello, i would like to know what is the complex number of : (a*c*d)×(-e*d+i)/(1-e*c*d^2) ACDE are strictly positive real constants. I is an imaginary number. Thanks you a lot for you help.

Hello, i would like to know what is the complex conjugate of : (a*c*d)×( (-e*d+i)/(1-e*c*d^2) ) Thanks for your help.

Which of the following tools of the Archaic culture was primarily used for hunting birds and smaller prey? A. atlatls B. game nets C. bird stones D. grinding stones

Sherry saved $1800 she earned at her summer job. She invested part of her money in a Treasury Bill at 5% and the balance in a Money Market fund which guaranteed a return of 10%. If she earned $165 on her investments in the first year, how much was investe...

A parallelogram has sides of lengths 7 and 4, and one angle is 55°. Find the lengths of the diagonals. (Round your answers to two decimal places. Enter your answers as a comma-separated list.)

I there are 1000 numbers in a contest what is the probability you win if: - play 1 number for $1.00 - play 2 numbers for $1.00 - play 1 number for $2.00

A ball thrown vertically upward has a speed of 5.0 m/s at a height of 3.0m. The mass of the ball is 1.2 kg. Find its mechanical energy

How were the carpetbaggers able to influence freed slaves in the south? A. They gave them land and helped them start farms. B. They took advantage of their inability to read and write. C. They promised them high-paying jobs in the newly elected government...

In what group of the periodic table is the element with the following configuration [Ar] 4s2 3d10 4p3

If a mouse fell to the bottom of a 8 foot deep well and he climbed 3 feet every day but fell 2 feet every night how many days would it be before he got out of the well?

Gus has a checking account balance of $75. His bank will fund the a debit card purchase that creates a negative balance up to a limit of $200, but charges a $35 fee per transaction for any purchase made in overdraft. Gus made a purchase of $100 yesterday,...

The table shows the number of beads used to make a necklace. Ginger wants to make a smaller necklace using the same ratio of pink to white beads. How many different necklaces could Ginger make? How do you know?

Answers

The following answers were posted by visitors named Karl.

thanks for trying

u need to get the M as M= 15*M(C) + 22 * M(H) + 2 * M(O) + 1 M(Cl) + 1 M(N) then u use the formula n=m/M and u replace youll have m= n*M

hows that it doesnt work whats the full equation?

okay thanks bobpursley

Lithium is a BCC Crystal a = 3.5092 * 10^-8 Planar Density (001) (top plane) = 1/a^2 = 8.12 * 10^14

If lithium is a BCC crystal. planar density is atoms per area the 001 plane look like this o--o | | o--o the sides are equal to lattice constant a and the atoms in this area = 4(1/4) = 1

I made a picture. goo.gl/zZdzSs

Thanks a lot for your help . I'll visit it

At what temperature do hydrogen molecules have the same rms speed as nitrogen molecules at 90 degrees Celsius?

Coefficient of kinetic friction= tan0- Accelaration/gcos0

Well, the pressure here is not constant, but the temperature is. Reversible implies that there are infinitesimal changes in certain parameters. For isothermal, reversible systems delta H=0 delta U=0 q=-w and w=-nRTln(Vf/Vi) You can find your Vf by using t...

Sorry for the late response, but your answers are correct.

was the answer to number 3 D(santee cooper project)?

Just do 5 divided by 8 and then do 24 divided by that outcome.

I agree with Steve.

I believe the correct answer is C.

Actually the correct answers are D, B, A

If I look at the exact element it goes under group 5A. Then if I consider the valence electron it will be under group 3A. Im still confused.

Oh thank you so much, I was confused about the fees

The Stubborn Child Law was in effect until 1973 in Massachusetts and many, many innocent children were ruined by this over the 300 years since the Puritanical types created it. Basically children had absolutely no rights under the law and were property of...

is there a solution?