fooks

[匿名]

回覆: 2

2016-05-30 5:02 pm

Dilution factor?

[匿名]

回覆: 1

2016-05-30 6:21 pm

PLS HELP - CHEM - STOICHIOMETRY HWWW?

[匿名]

回覆: 1

2016-05-30 6:15 pm

Find the angles of a rhombus if the ratio of the angles that the diagonals form with a side is 6:9.?

[匿名]

回覆: 2

2016-05-30 6:03 pm

My chemistry final is coming up and these are some questions I've gotten wrong on previous tests.someone please tell me the correct answers?

[匿名]

回覆: 1

2016-05-30 5:50 pm

Calculate the pH of the solution after adding 25,00 mL of 0,200M NaOH to 35,00 mL of 0,100 M acetic acid solution(HC2H3O2).?

[匿名]

回覆: 1

2016-05-30 5:53 pm

Urgent chemistry hw help - moles/molecules/atoms and stoichiometry...?

[匿名]

回覆: 1

2016-05-30 5:36 pm

A sealed balloon has a volume of .660 L when filled with air at 22 C at atmospheric pressure. The balloon is heated.?

[匿名]

回覆: 4

2016-05-30 5:30 pm

Please tell me if this is correct? If it's not please fix.?

[匿名]

回覆: 2

2016-05-30 4:59 pm

if A and B are two random events with probabilities of P(A) = 1/2, P(B) = 1/3 P(A intersection B) =1/4 calculate P(A/B)?

[匿名]

回覆: 1

2016-05-30 4:42 pm

How Many grams of NaN3 can be made by the reaction of 3.50g of NaNH2 and 3.50 g of NaNO3?

[匿名]

回覆: 1

2016-05-30 4:50 pm

A Power Plant Using The Heat From Fission To Produce Electricity Is Called A Nuclear _______?

[匿名]

回覆: 1

2016-05-30 4:30 pm

A 5 kg ball travelling East at 15 m/s hits a 10 kg ball moving at 5 m/s towards the West. After collision the 5 kg ball bounces back at 6m/s?

[匿名]

回覆: 1

2016-05-30 3:50 pm

What is the vsepr shape of TeF6-?

[匿名]

回覆: 1

2016-05-30 4:10 pm

2 CO + O2 à 2 CO2 ,how many g of CO2 are formed if 17g of CO are combined w excess oxygen? a. 72.5 g b. 26.7 g c. 10.4 g d. 53.5 g?

[匿名]

回覆: 1

2016-05-30 4:12 pm

chemistry help?

[匿名]

回覆: 2

2016-05-30 4:07 pm

How many moles of aluminum are contained in 27.00 g of Al(OH)3? a. 1.038 mole b. 0.614 mole c. 1.000 mole d. 0.346 mole?

[匿名]

回覆: 2

2016-05-30 10:49 am

CHEM HELP PLEASE!!! A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.64.?

[匿名]

回覆: 1

2016-05-30 12:41 pm

3 straight chain alcohols with the molecular formula C6H14O?

[匿名]

回覆: 2

2016-05-30 1:52 pm

why is hydrogen not placed in group 1 in the periodic table?

[匿名]

回覆: 2

2016-05-30 1:49 pm

What is the specific heat of an alloy?

[匿名]

回覆: 1

2016-05-30 1:33 pm

the density of methane at 2 atmosphere pressure at 25 degree centigrade is how many gram per litre?

[匿名]

回覆: 1

2016-05-30 10:22 am

pH and pKa question on titration curve please????!!!?

[匿名]

回覆: 1

2016-05-30 10:02 am

Full chemical equation, and ionic equation of zinc oxide and sulfuric acid? Please explain?

[匿名]

回覆: 2

2016-05-30 8:42 am

If the resultant of two vectors each of magnitude F is also of magnitude F, the angle between them will be?

[匿名]

回覆: 2

2016-05-30 9:37 am

If 1000 J of energy is required to raise 0.5 kg by 1 Celsius, what is the magnitude of the specific heat capacity of the material?

[匿名]

回覆: 1

2016-05-30 9:40 am

What are the physical properties that make aluminium suitable for wheel covers?

[匿名]

回覆: 1

2016-05-30 9:37 am

physical properties that make aluminium suitable for wheel cover?

[匿名]

回覆: 1

2016-05-30 9:27 am

A hovering gull drops a clam and it takes 2.5s to hit the rocks below?

[匿名]

回覆: 2

2016-05-30 9:29 am

A workman drops a wrench from the 12th floor of a building. Each floor is 3.0m tall.?

[匿名]

回覆: 3

2016-05-30 8:14 am

If the slope of a straight line (m<0) and the line passes through point A(1;8). How do I represent the line's equation using m?

[匿名]

回覆: 2

2016-05-30 5:25 am

Physics homework, HELP!?

[匿名]

回覆: 1

2016-05-29 6:06 pm

Suppose that 9.4 mL of 3.6 M KOH(aq) is transferred to a 250 mL volumetric flask and diluted to the mark?

[匿名]

回覆: 1

2016-05-29 5:34 pm

Sn(s) | Sn2+ || Pb2+ | Pb(s) Sn2+ +2e- <=>Sn e°=-0,14V Pb2+ + 2e- <=> Pb e° = -0,13V what is E°?

[匿名]

回覆: 1

2016-05-29 5:41 pm

Calculate ΔHrxn for the following reaction:?

[匿名]

回覆: 1

2016-05-28 3:29 am

When 3 g of magnesium nitrate is added to water a solution of 100 cm 2 is formed what is the concentrated of ions in the solution?

[匿名]

回覆: 1

2016-05-29 4:53 pm

the ph of 0.164M aqueous solution of dimethyleamine is found to be 11.98.calculate pOH and concentration of hydroxyl ion?

[匿名]

回覆: 2

2016-05-29 3:56 pm

Evaluate the indefinite integral (x^2+1)(x^3+2x)^4 dx?

[匿名]

回覆: 5

2016-05-29 4:41 pm

If I work from 3:30 to 7:30 how many hours is that?

[匿名]

回覆: 1

2016-05-29 4:10 pm

Evaluate the area between the graphs y1=x and y2= (x+3)x(x-3) ?

[匿名]

回覆: 2

2016-05-29 1:37 pm

calculate the time for deposit 1.17g of ni at cathode when a current of 5a was passed through the solution of ni(no3)2?

[匿名]

回覆: 1

2016-05-29 7:13 am

Methanal when treated with NH3 gives?

[匿名]

回覆: 2

2016-05-27 3:18 pm

If A.M and G.M are Arithmetic and Geometric mean then prove that A.M is (greater than or equal to)G.M.?

[匿名]

回覆: 1

2016-05-25 12:17 am

Determine the density of oxygen gas at 5.2 atm and 12◦C. Answer in units of kg/m 3 .?

Power

回覆: 1

2016-05-25 12:31 am

Chemistry dissolution problem?

Power

回覆: 1

2016-05-25 12:30 am

Chemistry dissolution help?

[匿名]

回覆: 2

2016-05-25 6:31 am

What's the limit?

Emily

回覆: 1

2016-05-23 3:57 pm

CHEMISTRY: molar concentration question?

[匿名]

回覆: 1

2016-05-23 3:28 pm

How many moles of water are produced when 40 g of pure hydrazine is ignited in the presence of 62 g of pure oxygen?

[匿名]

回覆: 1

2016-05-23 3:29 pm

In the reaction H2CO3 (aq) + 2NH3 (aq) --> 2NH4+ (aq) + CO3 2- (aq) which substance is reduced?

[匿名]

回覆: 1

2016-05-23 8:51 am

how many moles of gas are produced for each 1.00g of NH4NO3?