戇戇居士

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2020-04-06 10:04 am

Chemistry: Using the Nernst Equation?

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回覆: 1

2019-04-24 11:42 am

I need help finding the net ionic equation from the 2 compounds (NH4)2SO4 & Ba(NO3)2.?

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回覆: 6

2018-01-09 11:44 pm

How to Find the arc length when thetha is equal to 135 and sector area is 162cm squared?

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回覆: 1

2018-01-09 10:59 pm

why energy of sigma 2px energy is greater than pi2py and pi2pz in nitrogen molecule?

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回覆: 2

2018-01-09 11:45 pm

Predict the formula of neutral ionic compound formed by K+ and S2-?

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回覆: 1

2018-01-09 11:24 pm

Could you please explain this chemistry observation, please. Test tomorrow, urgent!?

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回覆: 1

2018-01-09 9:58 pm

Need help with chemistry assignment?

[匿名]

回覆: 2

2018-01-09 7:27 pm

Hcl (g)+H2O=H3O+cl In this reaction HCl is in gas state so it is not an acid but it donate a proton so it must be acid ?

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2018-01-09 3:24 pm

Classify the type and mechanism of reactions of alkenes ?

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2018-01-09 4:47 pm

What is the production of this reaction NH4+OH?

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2018-01-09 12:24 pm

Please help!! Chemistry 20?

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2018-01-09 12:16 pm

Ethanol is warmed from 4.5C to 50.2C, how much energy was required?

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回覆: 2

2018-01-09 10:39 am

Natural redox process that returns refined metals to their more stable metal oxides is called?

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2018-01-09 11:38 am

what is the balanced chemical reaction between Sodium Acetate Trihydrate and water in a heat pack?

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2018-01-09 11:11 am

What is the total pressure after 1.00 mol of H2 (g), 1 mol of O2(g) and 3 mol of CO2 (g), are injected into a rigid 22.4L container at 273 K?

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2018-01-09 10:51 am

A sample of 0.02 mol of chlorine gas is kept at 27 degrees C and 0.15 atm. What would be its pressure if the temperature was increased to...?

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回覆: 2

2018-01-08 11:45 pm

Integrate using Trig Sub Integral of dx/(4+x^2)?

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回覆: 2

2018-01-08 10:18 pm

Which of the following metals can be used to reduce compounds of iron to iron metal?

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回覆: 4

2018-01-08 9:17 pm

Please help me with A level maths?

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回覆: 3

2018-01-08 6:51 pm

Please help me this?

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回覆: 4

2018-01-08 6:35 pm

how will you get the circumference using diameter and radius?

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回覆: 1

2018-01-08 3:27 am

CHEM HELP SOS?

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回覆: 1

2018-01-07 10:44 pm

4. A 100 kg box is set into motion down a rough incline from rest. A constant horizontal force F = 20 N.?

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2018-01-07 10:59 pm

A 100 kg box is set into motion down a rough incline from rest. A constant horizontal force F = 20 N.?

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2018-01-07 9:34 pm

what process changes the colour of a halide-cyclohexane from orange to violet?

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回覆: 1

2018-01-07 6:29 am

Chem Help!! titration?

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回覆: 7

2018-01-06 10:21 pm

the ratio between two quantities is 3:4 if the first is rupees 810 find the second?

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回覆: 1

2018-01-06 3:10 pm

Chemistry: A BUFFER IS PREPARED BY MIXING 15g OF HF AND 25g OF NAF IN A 125mL water. what is the pH of this buffer solution? show hydrolysis?

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回覆: 3

2018-01-06 9:10 am

6.11 g of a gold-zinc alloy reacts with hydrochloric acid.?

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回覆: 3

2018-01-05 8:24 pm

Are the two objects s acceleration same or different?

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2018-01-05 1:31 pm

Consider the following reactions: N2 + 3H2 = 2NH3. Experimental data indicate the initial rate of change for nitrogen is -0.060 M/sec?

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2018-01-04 5:12 pm

Determine whether the following statement is true or false. ExplainThe circumcenter of a triangle is always in the interior of the triangle.?

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2018-01-04 6:26 pm

What magnitude of current produces 1.0 kg of sodium metal in 1 hour?

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2018-01-04 12:16 am

How to turn this into a fischer projection?

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回覆: 5

2018-01-03 10:19 pm

Solve the simultaneous equation x - 2y + z = -2 x + y - 2z = 4 -2x + y + z = 12?

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回覆: 3

2018-01-03 7:44 pm

When P(x) and Q(x) are divided by x^(2)-2x+3 the remainders are(x-2) and (x+3) respectively?

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2018-01-03 12:39 pm

CHEM!!!!!!!!?

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2018-01-01 6:11 pm

How to do 5a and 5b?

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回覆: 4

2018-01-01 4:23 pm

Complex Number Problem:Plz help The vertices of a triangle ABC are 1+2j,4-2jand 1-6j.Prove that the triangle is isosceles.?

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回覆: 2

2018-01-01 10:41 am

Algebra question (Will award best answer)?

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回覆: 2

2018-01-01 9:48 am

Compare the oxidation number of sulfur in the following molecules and ions: (F) SO2Cl2 (G) HSO3?

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回覆: 11

2017-12-31 11:07 pm

Help with logarithms?

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2017-12-31 11:18 pm

write the empirical formula of at least four binary ionic compounds that could be formed from the following ions Ca2+,Ni4+,Cl-S2-?

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2017-12-31 8:49 pm

occupied electron shells和 electron shells一樣?,,,?

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2017-12-31 12:23 pm

Physics HW help???

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2017-12-31 10:21 am

suppose that you measure a 480 count per minute (cpm) on your radiation detector placed 6 m from that radiation source , if you moved?

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2017-12-31 9:12 am

Help needed with gas laws chemistry questions!?

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2017-12-31 9:14 am

Help needed with gas laws chemistry problems!!?

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回覆: 3

2017-12-30 11:48 pm

Do these points intersect? 5x + 6y = -5.5 & 6x + 1.5y = -8.5. My answer is yes and point of intersection is -1.5, 0.33. Is it correct?

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回覆: 1

2017-12-30 5:17 pm

Explain why electrons do not appear as reactors or outputs in oxidation and reduction equations?