Roger the Mole

[匿名]

回覆: 2

2018-07-08 6:32 pm

how many grams of cuso4 are needed to make 350 ml of a solution that contains 10.5 mg/ml of cu2+ ion?

[匿名]

回覆: 5

2018-06-15 7:18 am

Is there any grammatical mistake in this sentence below?

[匿名]

回覆: 4

2018-06-10 4:18 am

Calculus 2 Area between curves problem?

[匿名]

回覆: 3

2018-06-08 6:33 am

Chemistry help, 10 points?

[匿名]

回覆: 1

2018-06-08 1:49 pm

what is this?

[匿名]

回覆: 3

2018-06-07 6:14 am

what is the net ionic equation for the neutralization of CH3COOH with NaOH?

[匿名]

回覆: 3

2018-05-30 7:34 am

PLEASE HELP!! Chemistry Question?

[匿名]

回覆: 2

2018-05-29 6:58 pm

Can you help me translate Chinese text on this poster?

[匿名]

回覆: 3

2018-05-27 3:05 pm

The diagram represents three vessels that contain the same amount of Argon gas, but with different temperatures and volumes.?

[匿名]

回覆: 2

2018-05-25 12:33 pm

Chemistry Question!!?

[匿名]

回覆: 1

2018-05-15 1:36 pm

What is that OH- of a solution with (H3O+) = 9.3x10^-2 M?

[匿名]

回覆: 3

2018-05-15 12:37 am

How many liters of 6.0 M H2SO4 are needed to make 0.50 L of 1.0 M solution?

[匿名]

回覆: 2

2018-05-14 8:04 am

The reaction 4Al (s) + 3O2 (g) → 2 Al2O3 (s) ΔH° = -3351 kJ is __________, and therefore, heat is __________ by the reaction.?

Christopher

回覆: 2

2018-05-09 2:41 pm

Hi, chemistry?

[匿名]

回覆: 4

2018-05-06 9:54 am

Draw A) 2,4-dimethyl-2-pentene B) 3-methyl-4-ethyl-2-hexene C) methylbutane?

[匿名]

回覆: 2

2018-05-05 9:17 am

Which functional group contains a carbonyl group and a hydroxyl group bonded to the same carbon atom?

[匿名]

回覆: 6

2018-05-02 8:21 am

How could one remove water from an acid?

[匿名]

回覆: 4

2018-04-16 5:20 pm

Have you heard someone say - pedantic air? What could it mean?

[匿名]

回覆: 5

2018-04-11 12:39 pm

How to say this? (Eng question)?

[匿名]

回覆: 6

2018-03-29 1:43 am

x ≥ y is it inequality?

[匿名]

回覆: 6

2018-03-26 3:09 am

Do you know Hellfire is under the Earth? Do you know crabs, spiders, worms live in the deepest ocean 10times hotter than boiling water?

[匿名]

回覆: 3

2018-03-23 1:47 pm

Reactive Distillation – combining Chemical Reaction and Distillation process?

[匿名]

回覆: 3

2018-03-23 11:38 am

Was Robert Cohn unhappy because he had discovered writing according to this two sentence bellow?

Wong

回覆: 1

2018-03-22 12:04 pm

Chemistry question?? How much heat energy does it take to make a sample of liquid nitrogen vaporize?

[匿名]

回覆: 3

2018-03-15 12:42 pm

Help balancing these chemical reactions for basic/acidic conditions?

[匿名]

回覆: 1

2018-03-12 3:58 am

Can you translate into English?

[匿名]

回覆: 1

2018-03-12 7:37 am

CHEM HELP?

[匿名]

回覆: 10

2018-03-07 2:50 pm

English question, please help?

[匿名]

回覆: 3

2018-02-19 1:07 pm

What are the balanced chemical equations?

[匿名]

回覆: 2

2018-02-12 3:02 pm

what is the full atomic symbol for Cswith a mass number of 133.(2)?

[匿名]

回覆: 2

2018-01-26 9:27 am

NEED HELP ASAP PLEASEEEE Which reaction is both a redox and a decom- position reaction?

[匿名]

回覆: 2

2018-01-22 12:54 pm

AP Chemistry Question?

[匿名]

回覆: 3

2018-01-21 12:37 am

The solubility of a compound in 35°C and 50°C is 60 and 80. 50g of saturated solution at 35°C is heated to 50°C.?

[匿名]

回覆: 3

2018-01-16 1:53 pm

N2(g) + 2O2(g) --> N2O4(g)?

[匿名]

回覆: 1

2018-01-15 7:42 am

Does lead effect the pH level of water?

[匿名]

回覆: 2

2018-01-12 11:11 am

How many µl of tetracycline stock solution and how much water do you use?

[匿名]

回覆: 2

2018-01-10 1:02 pm

Is it possible to use tap water to make these solutions in the iodine clock reaction?

[匿名]

回覆: 2

2018-01-10 12:03 pm

Show all work.Balance each of the following half-reactions under basic conditions (#1)Cr^3+(aq)-->CrO4^2-(aq) (#2)HSnO2^-(aq)-->HSnO3^-(aq)?

[匿名]

回覆: 2

2018-01-09 10:39 am

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

[匿名]

回覆: 5

2018-01-04 2:53 pm

What group Hydrogen belongs in Periodic table?

[匿名]

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?

[匿名]

回覆: 3

2017-12-27 8:01 pm

A mixture of NaCl and NaBr have a mass of 2.0 g and the mass of Na is .75 g. HOW do you find the mass of NaBr? The book answer is NaBr=.224g?

[匿名]

回覆: 3

2017-12-15 9:12 am

which temperature is HIGHER in freezing point, -255 Celsius or -25 Celsius?

[匿名]

回覆: 2

2017-12-15 1:42 am

(NH4)2SO4 + NaOH = NH3 + Na2SO4 + H2O The answer I'm told is: (NH4)2SO4 + 2NaOH = 2NH3 + Na2SO4 + 2H2O I can't understand how this is...?

[匿名]

回覆: 2

2017-12-14 11:33 am

Is this MgCl2, KCl, or K2SO4?

[匿名]

回覆: 2

2017-12-11 12:54 pm

Molar mass of a solute?

[匿名]

回覆: 3

2017-12-10 9:30 am

calculate the mass of water formed by the complete reaction of 44.1g of propane with oxygen?

[匿名]

回覆: 2

2017-12-08 1:04 pm

what is the spector ions for K2CrO4 + Ba (NO3) 2 - > 2KNO3 + BaCr O4?

[匿名]

回覆: 2

2017-12-07 9:51 am

Chemistry balanced equations?

[匿名]

回覆: 2

2017-11-29 3:58 pm

Balancing Redox acid?