wanszeto

[匿名]

回覆: 2

2018-01-24 1:53 pm

Overall reaction?

[匿名]

回覆: 2

2018-01-24 9:46 am

What is the pH of a 0.337 M solution of NH4NO3? The ionization constant of the weak base NH3 is 1.8 × 10−5 .?

[匿名]

回覆: 1

2018-01-24 10:24 am

Chem help?

[匿名]

回覆: 1

2018-01-24 10:25 am

Chem help?

[匿名]

回覆: 1

2018-01-24 7:08 am

Please help!?

Christopher

回覆: 2

2018-01-23 11:30 pm

Sketching ( pls give clear graphing )?

[匿名]

回覆: 2

2018-01-23 10:44 pm

Neutralization reaction between methylamine and pyridinium ion?

[匿名]

回覆: 8

2018-01-23 10:38 pm

Are arcsin and sin^-1 the same thing?

[匿名]

回覆: 1

2018-01-23 2:13 pm

What is the angle θ?

[匿名]

回覆: 1

2018-01-23 8:59 am

how many electrons does sodium have in its outer shell?

[匿名]

回覆: 1

2018-01-23 3:44 pm

Reaction+ cell potential for redox reaction in galvanic cell?

[匿名]

回覆: 2

2018-01-23 3:38 pm

MAth quadratics?

[匿名]

回覆: 2

2018-01-23 11:41 am

How to determine which is acid/base? (Orgo)?

[匿名]

回覆: 1

2018-01-23 1:09 pm

How many nitrogen atoms are in a 2.51 mol sample of N2O?

[匿名]

回覆: 1

2018-01-23 12:20 pm

Write a balanced half reaction for the reduction of MnO2 (s) in acid solution.?

[匿名]

回覆: 2

2018-01-23 11:26 am

Can anyone help me with a frequency question. I’m stuck?

[匿名]

回覆: 2

2018-01-23 9:21 am

What mass of sodium ethanedioate, Na₂C₂O₄, must be weighed out to obtain 600cm³ of a solution with a concentration of 0.80moldm-³?

[匿名]

回覆: 2

2018-01-22 11:31 pm

Chemistry assignment help?

[匿名]

回覆: 1

2018-01-22 6:32 pm

Chemistry gas equilibrium constant?

[匿名]

回覆: 1

2018-01-22 4:55 pm

Can you help me answer this redox reaction question? I'm stuck?

[匿名]

回覆: 1

2018-01-22 11:21 am

Which of the compounds below is most likely to be ionic? A. CIO2 B. CCI4 C. NO2 D. AlP?

[匿名]

回覆: 1

2018-01-22 1:51 pm

Calculate the energy change for a pure substance over a temperature range.?

[匿名]

回覆: 3

2018-01-21 2:16 am

How do I write out chemical formulas?

[匿名]

回覆: 2

2018-01-20 6:32 pm

4 of the samples are pure compounds and the other is a mixture. Which two samples are of the same compound?

[匿名]

回覆: 2

2018-01-20 8:18 am

How much aluminum nitrate can be found when 21 g of aluminum react with lead(II) nitrate? Answer in units of mol.?

[匿名]

回覆: 3

2018-01-19 6:26 pm

how long for water to evaporate?

[匿名]

回覆: 1

2018-01-19 6:48 pm

Which of the following solutions has a molarity different from the rest? (w/ solution) A. 6N H3PO4 B. 4N Ca(OH)2 C. 8N HC2H3O2 D. 2N NH4OH?

[匿名]

回覆: 1

2018-01-19 10:48 am

Calculate the average mass, in grams of a platinum atom.?

[匿名]

回覆: 2

2018-01-19 12:29 pm

Chem solution question, pls help?

[匿名]

回覆: 1

2018-01-19 2:16 pm

A 4.75 g of Sodium sulfate that has been combined with water create a solution with a volume of 50 mL. Find concentration of this solution.?

[匿名]

回覆: 2

2018-01-17 7:30 pm

which condition must always be kept constant?

[匿名]

回覆: 4

2018-01-17 4:38 pm

Logarithmic Question?

[匿名]

回覆: 1

2018-01-17 4:03 pm

physics help?

[匿名]

回覆: 1

2018-01-17 2:35 pm

2. Construct a line that is perpendicular to line m and that passes through point P.?

[匿名]

回覆: 3

2018-01-17 1:15 pm

How do I solve 10 divided by 0.4?

[匿名]

回覆: 1

2018-01-17 12:44 pm

Chemistry help?

[匿名]

回覆: 1

2018-01-17 10:33 am

What is the final temperature in a squeezed cold pack that contains 45.0 g of NH4NO3 dissolved in 125 mL of water?

[匿名]

回覆: 3

2018-01-17 10:02 am

Sum of three number a.p. is 15 if 1,4,19,... Are added respectively their form g.p. find the number.?

[匿名]

回覆: 6

2018-01-17 8:31 am

MATH HELP PLZ?!? One Question!?

[匿名]

回覆: 2

2018-01-17 7:30 am

pH to H3O+ and OH values?

[匿名]

回覆: 2

2018-01-17 6:40 am

Find the area between y=sinx and y=cosx on [0, pi].?

[匿名]

回覆: 1

2018-01-17 6:23 am

What is the order of the strengths of the three Bronsted acids.?

[匿名]

回覆: 2

2018-01-17 6:03 am

What are the H+, A, and HA concentrations?

[匿名]

回覆: 1

2018-01-17 6:02 am

identify the Bronsted acid and base on the left, and their conjugate partners on the right?

[匿名]

回覆: 2

2018-01-16 8:40 pm

List five different processes when entropy is greater than zero?

[匿名]

回覆: 5

2018-01-16 11:36 pm

Geometry Help?

[匿名]

回覆: 3

2018-01-16 11:43 pm

What type of chemical reaction will occur if caustic soda is added to vinegar ?

[匿名]

回覆: 2

2018-01-16 10:19 pm

A mixture containing 2.35 g each of CH4(g), C2H4(g) and C4H10(g) is contained in a 1.50 L flask at a temperature of 25°C.?

[匿名]

回覆: 2

2018-01-16 8:52 pm

Chemistry Questions...?

[匿名]

回覆: 3

2018-01-16 7:36 pm

if (3m+1)x +n+5=7x +4 has infinite solutions then m=?,n=?