#### what is the oxidation number of arsenic in chromium(III) arsenate?

Pressure treated lumber contains a compound with the molecular formula CrAsO₄. Given that this compound contains a Cr(III) cation, what is the oxidation number of arsenic in chromium(III)... more

3d

#### Describe the interval(s) on which the function is continuous. (Enter your answer using interval notation.)

Describe the interval(s) on which the function is continuous. (Enter your answer using interval notation.)f(x)=x+5/sq root xPlease find the answer because I have been trying on this one and I can't... more

3d

Find d2y/dx2 implicitly in terms of x and y.x2y − 2x = 8d2y/dx2 =?Please find the answer and make it clear, please.

3d

#### walnut and cashew mix

how many pounds of walnuts that cost $.80/lb must be mixed with 8 lbs of cashews that cost$1.25/lb to make a mixture of nuts that cost \$1.00/lb??

#### Using Green’s Theorem to evaluate

Use Green’s Theorem to evaluate∮C(x − 2y2) dx + (y4 + 2xy) dy where C consists of the line segmentfrom (0, 2) to (0, 4), followed by the curve with parametric equations x = 4 cos t, y = 4 sin t... more

3d

#### Fundamental Theorem for Line Integrals

Find the work done in moving a particle along a curve from point A(1, 0, −1) to B(2, 2, −3) via the conservative force field ~F (x, y, z) = 〈2y3 − 6xz, 6xy3 − 4y, 4 − 3x2〉. (a) using the... more

#### What is the value of Q and what is the concentration of the Ni2+ ions?

You have a battery composed of the following reaction:Ni(s) + 2 Ag+(aq) → Ni2+(aq) + 2 Ag(s), Ecellº=1.03 V, n = 2 e- If you want to make a cell with an operating potential of 1.05 V, what is the... more

#### Calculate the operating potential of the battery produced

While working in the lab, a student was designing a battery using the reaction below:Ni(s) + 2 Ag+(aq) → Ni2+(aq) + 2 Ag(s), Ecello=1.03 V, n = 2 e- They wanted to produce a cell with an operating... more

#### Solve the equations from parts a and b.

Find the dimensions of a rectangle given that its perimeter is 80 cm and its length is 1 cm more than twice its width. Set up your solution using the variables L for the length, W for the width,... more

#### Find PM and MQ, given that M is the midpoint of the segment.

|-‐-----------------------------22----------------------------|●----------------|-------------●-‐--‐----‐---|-------------●P. M. Q. ... more

#### Why write by hand when typing can be faster?

Why do more work than you have to?

3d

#### The radius r of a circle is increasing at a rate of 3 centimeters per minute. Find the rate of change of the area when r = 38 centimeters.

The radius r of a circle is increasing at a rate of 3 centimeters per minute. Find the rate of change of the area when r = 38 centimeters.Answer?

#### Zumdahl chemistry Ch. 5.4

Given reaction 2NH3(g) + 3Cl2(g)  N2(g) + 6HCl(g), you react 5.0 L of NH3 with 5.0 L ofCl2 measured at the same conditions in a closed container. Calculate the ratio of pressures inthe container... more

3d

3d

#### find all values of c in the open interval (a, b) such that f '(c) = 0. (Enter your answers as a comma-separated list.

find all values of c in the open interval (a, b) such that f '(c) = 0.(Enter your answers as a comma-separated list.f(x) = (x − 3)(x − 8)(x − 9),    [3, 9]C=?Please find the answer so I can see... more

3d

−6(x+7)=−4x−2

#### Calculate the pH of the titration mixture after mL of base added

A 25.0 mL sample of a  0.100 M  solution of acetic acid is titrated with a  0.125 M  solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been... more

#### I don't know how to solve this question. Help me out please.

A rectangle has perimeter 80 cm and its length is 1 cm more than twice its width. Find the dimensions of a rectangle given that its perimeter is  80 cm and its length is 1  cm more than twice its... more

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