fooks

[匿名]

回覆: 2

2016-06-12 4:35 pm

Write a balanced ion-electron half equation for the reaction which each undergoes when acting as an oxidising agent?

[匿名]

回覆: 2

2016-06-12 4:33 pm

How many magnesium atoms are there in 5.49 moles of magnesium?

[匿名]

回覆: 3

2016-06-12 4:15 pm

what is the similarities and differences of diamond and graphite?

Andrea

回覆: 2

2016-06-12 3:33 pm

At 25°C, the partial pressure of gases at equilibrium are as follows: N2 = 0.12 atm, O2 = 0.040 atm, and NO = 4.5 x 10^-17 atm.?

[匿名]

回覆: 1

2016-06-12 2:45 pm

what will be the total number of decay particles emitted when one uranium-238 atom decays to form one radon-222 atom?

[匿名]

回覆: 2

2016-06-12 5:59 am

Use S=(1+(M/m))^-1 to write an expression for delta S in terms of delta m and delta M.?

[匿名]

回覆: 1

2016-06-12 2:13 pm

For a reaction that is exothermic in the forward direction, a decrease in temperature will...?

[匿名]

回覆: 3

2016-06-12 1:30 pm

why are these compounds wrong? 1,1-dichloro-5-propylhexane & 2-methyl-4-chloro-3heptenoic acid. what are their correct names?

[匿名]

回覆: 1

2016-06-12 12:50 pm

In beta decay, do we expect the atomic number of the daughter nucleus to be equal to,?

[匿名]

回覆: 2

2016-06-12 12:58 pm

name the gas evolved at cathode and anode on electrolysis of water and what is the ratio of the gases evolved?

[匿名]

回覆: 3

2016-06-12 1:02 pm

why would a solution with H+ concentration of 1.00 x 10^-7 M be said to be neutral?

[匿名]

回覆: 2

2016-06-12 11:47 am

Would NaBH4 react with aspirin and paracetamol?

[匿名]

回覆: 1

2016-06-12 7:41 am

Calculate the volume (in mL) of 0.170 M NaOH that must be added to 413 mL of 0.0413 M (MOPS) to give the solution a pH of 7.55.?

[匿名]

回覆: 1

2016-06-12 8:11 am

oxygen and copper are produced during the electrolysis of a CuO solution. Which reaction occurs at the negative electrode?

[匿名]

回覆: 1

2016-06-12 11:13 am

http://i65.tinypic.com/1692b8m.jpg Question 12 why is the answer (c)..?

Ari

回覆: 1

2016-06-12 8:22 am

Is there any dative bond(molecular bond)in SO4 2- and NO3-?????if so please give the Lewis structure.?

[匿名]

回覆: 2

2016-06-12 8:24 am

How many molecules of SrCrO4 are in a sample of SrCrO4 that has a mass of 24.86 g?

[匿名]

回覆: 2

2016-06-12 7:08 am

Which particle has more protons than electrons AND more protons than neutrons? Help?

yu

回覆: 1

2016-06-12 5:51 am

Why chlorine has smaller atomic size in period 3?

[匿名]

回覆: 3

2016-06-12 5:51 am

Why the water solubility of cis-ethanedioic acid is higher than that of trans-ethanedioic acid？

[匿名]

回覆: 2

2016-06-12 5:59 am

HOW DO YOU DO THIS QUESTION - Urgent Empirical/Molecular Formula Question Chemistry?

Ari

回覆: 1

2016-06-10 5:39 pm

is NO2 a monomer?

Ari

回覆: 1

2016-06-10 5:39 pm

is NO2 a monomer?

[匿名]

回覆: 2

2016-06-10 5:14 pm

Which produces the greatest number of ions when one molecule dissolves in water ?

[匿名]

回覆: 2

2016-06-10 5:26 pm

What is the pH of a 0.066 M solution of HCl?

[匿名]

回覆: 2

2016-06-10 2:38 pm

A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment.?

[匿名]

回覆: 1

2016-06-10 4:04 pm

Http://i65.tinypic.com/ou8n12.jpg - Question 7 why is the answer (c)..?

[匿名]

回覆: 1

2016-06-06 1:24 pm

Http://i67.tinypic.com/mrpagn.jpg - Question 27 why is the answer (a)?

[匿名]

回覆: 1

2016-06-08 3:09 am

Http://i68.tinypic.com/1zfh081.jpg - Question 10 why is the answer (D)..?

[匿名]

回覆: 2

2016-06-09 2:24 pm

http://i68.tinypic.com/9j0ku0.jpg - question 25 why is the answer (b)..?

[匿名]

回覆: 1

2016-06-10 12:55 pm

Http://i68.tinypic.com/9j0ku0.jpg - question 25 why is the answer (b)..?

[匿名]

回覆: 1

2016-06-07 11:38 am

http://i68.tinypic.com/1zfh081.jpg - Question 10 why is the answer (D)..?

[匿名]

回覆: 6

2016-06-10 1:15 pm

find three rational number between 2/3 and 3/4?

[匿名]

回覆: 1

2016-06-10 4:48 am

If sin(u) = - 4/5 with pi<x<3pi/2 what does cos(u/2) =?

[匿名]

回覆: 4

2016-06-10 5:09 am

what is the area of a regular pentagon that has a radius of 10in?

[匿名]

回覆: 2

2016-06-10 5:21 am

Question Math?

[匿名]

回覆: 2

2016-06-10 3:43 am

At a given point above Earthʹs surface, the acceleration due to gravity is equal to 7.8 m/s2......?

[匿名]

回覆: 1

2016-06-10 3:10 am

Find the sum of each series, if it exists.?

[匿名]

回覆: 1

2016-06-10 3:18 am

Why does ionic compounds have high boiling and melting points?

[匿名]

回覆: 1

2016-06-10 3:11 am

Why doesn t NaCl conduct electricity in a solid state?

[匿名]

回覆: 2

2016-06-10 3:05 am

what is the mass of 10.2 L of ammonia (NH3) at stp?

[匿名]

回覆: 4

2016-06-10 3:00 am

Find the sum of the geometric series for which a1 = 125, r = ⅖, and n = 4.?

[匿名]

回覆: 4

2016-06-10 2:57 am

Math question?

[匿名]

回覆: 1

2016-06-10 2:26 am

A velocity vector 50˚ below the positive x-axis has the y-component of -10m/s . It's x-component is ??? Answer is 8.4m/s?

[匿名]

回覆: 1

2016-06-10 1:25 am

How many lone pair electrons are on the center atom of an SO2 atom?

[匿名]

回覆: 1

2016-06-10 1:35 am

Questions on CH3COOH(aq) + H2O(l) <--> CH3COO^(-)(aq) + H3O^(+)(aq) ?

[匿名]

回覆: 2

2016-06-09 6:26 pm

Balance the following net ionic equation by the half-reaction method. The reaction takes place in acidic solution?

[匿名]

回覆: 1

2016-06-09 6:28 pm

solution has density of 1.5g/ml how many grams to obtain 10mL of solution? please explain?

[匿名]

回覆: 1

2016-06-09 6:10 pm

Iron (III) oxide Fe2O3 reacts with hydrogen gas H2 at elevated temperatures to produce iron metal and water.?

[匿名]

回覆: 1

2016-06-09 5:30 pm

chem 30. type of reactions?