pingshek

[匿名]

回覆: 2

2020-11-25 9:03 am

Numerical value of reaction?

[匿名]

回覆: 2

2020-10-12 1:29 pm

Area of Triangle help?

[匿名]

回覆: 3

2020-10-08 3:28 pm

math help please?

[匿名]

回覆: 3

2020-10-07 9:29 pm

a piece of silver wire has the mass of 53.91 grams. how many moles of silver are in the wire?

[匿名]

回覆: 1

2020-09-30 12:47 am

Starting from rest, a 12-kg cardboard box containing used textbooks slides down a steel ramp...?

Engr. Ronald

回覆: 9

2020-09-29 11:02 pm

Geometry(similarity) ?

[匿名]

回覆: 2

2020-09-29 11:20 pm

Average temp?

[匿名]

回覆: 1

2020-09-23 1:59 pm

showing the proper stereochemistry, draw the structures of the compound?

[匿名]

回覆: 1

2020-09-23 2:06 pm

Zn(s)+2HCl(aq)⟶ZnCl2(aq)+H2(g)   How many milliliters of 2.00 M HCl(aq) are required to react with 4.85 g Zn(s)?  volume:?

[匿名]

回覆: 1

2020-09-23 2:08 pm

8.49 g of liquid 1‑propanol, C3H8O, is combusted with 44.1 g of oxygen. CO2 & water are products. Write the balanced chemical equation ?

[匿名]

回覆: 2

2020-09-23 2:01 pm

By completing the square find in terms of k the solutions of the equation x^2 - 4kx + 6 =0?

Mcc

回覆: 3

2020-09-19 10:55 pm

Non-linear equation to Y = mX + c form?

[匿名]

回覆: 1

2020-09-19 9:23 pm

The relative atomic mass of neon is 20.18 It consists of three isotopes with the masses of 20,21and 22 It consists of 90.5% of NE20 find % ?

[匿名]

回覆: 6

2020-09-17 12:14 am

Can someone explain this question plz ?

[匿名]

回覆: 1

2020-09-11 4:02 pm

find E for half reaction?

[匿名]

回覆: 1

2020-09-11 3:59 pm

What is the [Cu2+] in the cell Zn(s) | Zn2+(1.0 M) || Cu2+(aq) | Cu(s) The standard emf of the cell is 1.10 V. Ecell = 1.03 V.?

[匿名]

回覆: 4

2020-09-11 3:31 pm

math problem?

[匿名]

回覆: 1

2020-09-08 4:56 pm

Finding Molarity (Chemistry)?

[匿名]

回覆: 2

2020-09-08 5:03 pm

If one factor of the difference of two squares is x+2, what is the other factor?

[匿名]

回覆: 13

2020-09-08 5:05 pm

Is 2x+3 prime? explain.?

[匿名]

回覆: 3

2020-09-05 4:37 am

How to name this organic molecule?

[匿名]

回覆: 3

2020-09-05 12:13 pm

How do you find the derivative of 1/x using limit definitions?

[匿名]

回覆: 2

2020-09-05 12:42 pm

Graph the image of this figure after a dilation with a scale factor of 1/2 centered at the origin?

[匿名]

回覆: 1

2020-08-31 12:05 pm

Write an equation that shows the formation of a chromium(II) ion from a neutral chromium atom. Represent electrons as e- .?

[匿名]

回覆: 3

2020-08-31 10:47 am

If the number of particles of gas within a container stays constant, and the volume of the container is reduced, then Question 10 options:?

[匿名]

回覆: 3

2020-08-31 10:52 am

Can someone please draw the grave ?

[匿名]

回覆: 2

2020-07-23 2:05 pm

A helium-filled weather balloon has a volume of 794 L at 22.9°C and 751 mmHg. It is released and rises to an altitude of 2.16 km,?

[匿名]

回覆: 1

2020-07-23 2:07 pm

Chemistry Help?

[匿名]

回覆: 1

2020-07-21 1:59 pm

HELP EDTA reacts with Ca2+ in a 1:1 mole ratio..... What is the concentration of the calcium ions solution? ?

[匿名]

回覆: 1

2020-05-31 9:09 pm

A rock is making a projectile motion and it is thrown with a 55.0∘ angle above the ground and hits a wall 17.0 m away at a point 8.00 m ...?

[匿名]

回覆: 10

2020-05-31 5:55 pm

What is most important when seeing if something is compatible with your electricity: wattage, volts, or amps?

[匿名]

回覆: 1

2020-05-31 3:00 pm

 Enthalpy Change For The Forward Reaction?

[匿名]

回覆: 1

2020-05-15 4:15 pm

What is the cell voltage of the following reaction and is the reaction spontaneous? Ba + Pb2+ --> Ba2+ + Pb?

[匿名]

回覆: 2

2020-05-15 1:55 pm

Can someone help me with chem?

[匿名]

回覆: 2

2020-05-15 2:05 pm

How I do this?  Chem help please?

chloe

回覆: 1

2020-05-15 1:44 pm

The following data were collected for the reaction 2 NO(g) + 2 H2(g) ? N2(g) + 2 H2O (l), at 826°C and with constant volume.?

[匿名]

回覆: 2

2020-05-02 8:14 pm

MA.nH2O is a hydrated salt with unknown moles of water, a student tried to determine the?

[匿名]

回覆: 2

2020-05-02 8:15 pm

determine the percent yield of copper oxide (CuO) in the decomposition of copper (II) carbonate(CuCO3).   ?

[匿名]

回覆: 1

2020-05-02 12:31 am

Calculus Help...Not sure how to do...?

[匿名]

回覆: 1

2020-04-20 5:51 pm

Consider    ClO3−(aq) + 5 Cl−(aq) + 6 H+(aq) ⟶ 3 Cl2(g) + 3 H2O(l) determine if each of the following statements is True or False.   ?

[匿名]

回覆: 1

2020-04-20 3:56 pm

use picture below please help?

[匿名]

回覆: 3

2020-04-20 12:21 pm

Calc 12!!?

[匿名]

回覆: 1

2020-04-14 12:48 pm

Calculate the voltage of the following cell: Zn | Zn^{2+} (0.14 M ) || Cu^{2+} (0.30 M) | Cu?

[匿名]

回覆: 1

2020-04-14 12:51 pm

Would you normally expect \Delta H° to be positive or negative for a voltaic cell?

[匿名]

回覆: 2

2020-04-14 12:26 pm

What is the protonated form of HA at equilibrium?

[匿名]

回覆: 6

2020-04-08 1:20 pm

 A tape that records 1 hour and 30 mins on each side moves at 2 1/2 cm a  second through the tape player. How long, in meters, is the tape?

[匿名]

回覆: 1

2020-04-08 12:34 pm

what is the expected freezing point of a solution containing of 18.8 grams of mgcl2 dissolved 200.00. grams of water?

[匿名]

回覆: 1

2020-04-08 12:36 pm

What is the expected boiling point of a brine solution containing 45.0 g of NaCl dissolved in 150.00 g of water? ?

[匿名]

回覆: 2

2020-04-08 12:48 pm

I need help with my AP Calculus AB limits review!?

[匿名]

回覆: 2

2020-04-08 12:40 pm

If one particle of Ca(ClO3)2 is dissolved in water, how many particles will there be in solution?