賣女孩的火柴

[匿名]

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2016-02-29 9:24 pm

At a certain temperature,the Kp for the decomposition of H2S is 0.784 H2S(g)-->H2(g)+S(g)?

[匿名]

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2016-02-29 9:23 pm

Organic Chemistry Question What is the systematic names for this? I really need help, I have a few answer but I'm unsure if they're correct?

[匿名]

回覆: 5

2016-02-29 9:20 pm

Convert y = x^2 - 5x - 36 to Factored Form?

[匿名]

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2016-02-29 8:00 pm

Chemistry HW Help?

[匿名]

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2016-02-29 7:56 pm

Chemistry Help Please?

[匿名]

回覆: 1

2016-02-29 7:29 pm

The following equation is balanced for the combustion reaction for C6H6: 2C6H6 +15O2 --> 12CO2 + 6H20 + 6542kJ?

[匿名]

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2016-02-29 7:18 pm

In a constant-pressure calorimeter, 65.0 mL of 0.300 M Ba(OH)2 was added to 65.0 mL of 0.600 M HCl.?

[匿名]

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2016-02-29 7:02 pm

If you combine 340mL of water at 25.00 degree C and 130.0 mL of water at 95 degree C, what is the final temperature of the mixture?

[匿名]

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2016-02-29 6:52 pm

Quick Chem Question, please someone help!?

[匿名]

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2016-02-29 6:46 pm

The wavelength for A is?

[匿名]

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2016-02-29 6:37 pm

physics question?

[匿名]

回覆: 3

2016-02-29 6:31 pm

Net ionic equation for lead(ii) sulfate + sodium acetate?

[匿名]

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2016-02-29 6:23 pm

An ideal gas at 7.5° C and a pressure of 1.94 105 Pa occupies a volume of 3.50 m3.?

[匿名]

回覆: 4

2016-02-29 6:02 pm

Consider the function f(x) for which f(0)=7 and f'(0)=7. Find h'(0) for th function h(x)= 1/f(x). h'(0)= please explain?

[匿名]

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2016-02-29 6:07 pm

A fair coin is tossed 5 times. What is the probability of obtaining exactly 4 heads.?

[匿名]

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2016-02-29 5:51 pm

The variable x satisfies the equation 3^x4^(2x+1)=6^(x+2), using logarithms of both sides show that x=log9/log8 Thanks xxx?

[匿名]

回覆: 1

2016-02-29 5:35 pm

Ammonia, NH3, is a weak base with a Kb = 1.8 x 10^-5. In a 0.8M solution of ammonia, what is the concentration of the ammonium ion, NH4+??

[匿名]

回覆: 2

2016-02-29 5:00 pm

Physics Help?

[匿名]

回覆: 1

2016-02-29 6:48 am

另請教下題如何解,感謝?

雅雯

回覆: 1

2016-02-29 3:34 pm

水平地面上放置一密度不均勻的直槓AB,長為4公尺，欲將A端提起，最少需力64公斤重；欲將B端提起，則最少需力80公斤重，那麼槓的質量為多少公斤? A144 B80 C72 D64 要怎麼算??各位幫幫我 T.T 謝謝?

[匿名]

回覆: 2

2016-02-29 8:25 am

什麼是半圓內的圓周角 求圖解?

[匿名]

回覆: 1

2016-02-29 10:08 am

離子化合物是靠離子鍵結合，但是到水中就會解離成正負離子，請問為什麼在水中正負離子不會吸在一起，而可以自由移動？

[匿名]

回覆: 1

2016-02-29 10:15 am

Simplify 5x^2+7x-2x^2-10x+5?

[匿名]

回覆: 2

2016-02-29 9:19 am

USING OHM'S LAW OF KIRCHHOFF'S. THANK YOU SO MUCH!!!!?

[匿名]

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2016-02-29 8:48 am

Calculate the quantity of heat required to raise the temperature of 40.0 g of water from 21.3 °C to 38.0 °C?

[匿名]

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2016-02-29 9:07 am

How many atoms are there in 55.85 grams of Fe?

[匿名]

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2016-02-29 8:52 am

how to integraTE (x^3+5x^2+9x+7)/(x^2+5x+4)?

[匿名]

回覆: 2

2016-02-29 8:20 am

OHM'S LAW?

[匿名]

回覆: 4

2016-02-29 7:31 am

What is step by step solution for the calculus of: (5x^2+12x)^2?

[匿名]

回覆: 3

2016-02-29 7:31 am

Help with this system.?

[匿名]

回覆: 4

2016-02-29 7:36 am

62.5 divided by what equals 25?

[匿名]

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2016-02-29 7:26 am

Use 4x^2+y^2-2xy-7=0 find dy/dx by implicit differentiation?

[匿名]

回覆: 2

2016-02-29 6:50 am

√6-√(3/2)?

yee

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2016-02-29 5:59 am

關於國二等差級數的問題?

[匿名]

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2016-02-28 12:40 pm

The potential difference between two points X and Y in a circuit is 10V. Which of the following must be correct ?

[匿名]

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2016-02-28 4:25 pm

投二顆6面骰子,總和為7點之事件及機率?

[匿名]

回覆: 2

2016-02-28 4:33 pm

投二顆6面骰子,總和為7點之事件及機率?

[匿名]

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2016-02-28 2:20 pm

an atom with 28 protons and 30 neutrons , what is its chemical notation?

[匿名]

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2016-02-28 2:00 pm

????^3+????^2−4????=4 How to factorise?

[匿名]

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2016-02-28 1:26 pm

a hiker walks in the direction 153 and stops when she is 20 km south of her starting point. how far did she walk? please explain as well?

[匿名]

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2016-02-28 12:50 pm

chemical reaction of the hydration of 2-methyl-propene in organic chemistry with the iupac name?

[匿名]

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2016-02-28 12:59 pm

Two jugs has mixtures of mango pulp and milk. First jug has ratio of mango pulp to milk is 1:4 and second one is 1:3. ratio is both combined?

[匿名]

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2016-02-28 12:52 pm

I need help finding the total ionic equation and the net ionic equation of ...?

[匿名]

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2016-02-27 6:47 pm

Solve using the quadratic formula: 4x2 = -3x – 5?

[匿名]

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2016-02-27 6:18 pm

Finding mols?

[匿名]

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2016-02-27 6:19 pm

What is the pH?

[匿名]

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2016-02-27 6:12 pm

PH explanation?

[匿名]

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2016-02-27 5:33 pm

Moles question & equilibrium?

[匿名]

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2016-02-27 5:32 pm

PARTIAL PRESSURE CHEMISTRY QUESTIOON? :(?

[匿名]

回覆: 1

2016-02-27 5:23 pm

CHEMISTRY HELP NEEDED! (DUE VERY SOON)?