Roger the Mole

[匿名]

回覆: 1

2015-04-27 11:27 pm

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent.?

[匿名]

回覆: 1

2015-04-19 7:10 pm

Liquid pentane reacts with gaseous oxygen to form carbon dioxide gas and liquid water. Write and balance the chemical reaction equation.?

[匿名]

回覆: 1

2015-04-19 7:10 pm

Solid sodium phosphate and aqueous calcium chloride react to form solid calcium phosphate and aqueous sodium chloride. Write and...?

[匿名]

回覆: 1

2015-04-19 7:10 pm

Solid aluminum bromide reacts with chlorine gas to form solid aluminum chloride and bromine gas. Write and balance the chemical...?

[匿名]

回覆: 1

2015-04-19 7:07 pm

How many moles of tetraphosphorus decoxide can be made with 28.9 moles of O?

[匿名]

回覆: 1

2015-04-19 7:07 pm

324 grams of solid sodium reacts with oxygen gas forming solid sodium oxide. How many grams of sodium oxide are produced?

[匿名]

回覆: 1

2015-04-18 11:15 pm

Solid sodium reacts with 7.0 moles of aqueous magnesium fluoride to form aqueous sodium fluoride and solid magnesium. How...?

[匿名]

回覆: 1

2015-04-18 10:42 pm

How many moles of oxygen are contained in 53.0 moles of calcium phosphate?

[匿名]

回覆: 1

2015-04-18 10:40 pm

Determine the number of moles of chlorine contained in 414 moles of nickel (II) perchlorate.?

[匿名]

回覆: 1

2015-04-17 1:59 am

22.0 grams of solid iron (II) sulfide reacts with 185 grams of hydrochloric acid (HCl). Determine what products are formed....?

[匿名]

回覆: 1

2015-04-17 1:58 am

Ethane gas reacts with 174 grams of oxygen gas forming carbon dioxide gas and liquid water. How many grams of water are produced?

[匿名]

回覆: 1

2015-04-17 1:57 am

218 grams of solid sodium reacts with oxygen gas forming solid sodium oxide. How many grams of sodium oxide are produced?

[匿名]

回覆: 1

2015-04-16 1:03 am

499 grams of aqueous lead (II) nitrate reacts with potassium sulfide. Determine what products are formed, balance the chemical equation...?

[匿名]

回覆: 1

2015-04-16 1:02 am

A 332.3 gram block of solid water is heated from -77.4°C to 51.7°C. Determine the total energy.....?

[匿名]

回覆: 1

2015-02-09 12:25 am

so we are doing molecular conversions in chemistry and there is one thing i need guidance on?

[匿名]

回覆: 6

2015-02-01 1:19 am

Calculate the energy in joules to heat 895 g of mercury from 37.0 C to 42.0 C. The specific heat capacity of Hg(l) is 0.139 J/g.C.?

[匿名]

回覆: 1

2014-12-17 7:12 am

A 1.9862-g sample of benzoic acid burns in an excess of oxygen, in a bomb calorimeter. The temperature of the?calorimeter rises from...?

[匿名]

回覆: 1

2014-12-17 2:49 am

Out-of-the-box Stoichiometry problem?

[匿名]

回覆: 1

2014-11-17 6:10 pm

Partial Pressure and Ideal Gas Law (Chemistry Problem)?

YipWing yan

回覆: 1

2014-11-03 1:47 am

What mass of ammonium hydroxide is needed to react completely with 75.0g of copper(II) nitrate in a double displacement reaction?

[匿名]

回覆: 1

2014-10-15 2:07 am

Chemistry Question?

[匿名]

回覆: 2

2014-09-29 5:38 am

I wonder why foam will form when you react NaOH and acetic acid together. Thanks!?

[匿名]

回覆: 1

2014-09-12 7:00 pm

metal question?

[匿名]

回覆: 3

2014-09-02 4:30 am

HELP PLEASE. A. Word equation B. Convert the word equation to formula eq. and balance C. Identify the type of chemical reaction.?

[匿名]

回覆: 1

2014-07-22 5:42 am

Limiting reagent. PLEASE HELP!!!!?

[匿名]

回覆: 1

2014-06-24 5:13 am

In the following redox reaction, determine what is oxidized, reduced, oxidizing agent, and reducing agent:?

[匿名]

回覆: 2

2014-06-16 10:13 pm

Net Ionic Equations?

[匿名]

回覆: 1

2014-06-13 8:03 pm

A student obtained a wet buret from the cart but failed to rinse it with a small amount of the base before sta?

[匿名]

回覆: 1

2014-06-02 2:53 am

What is the Enthalpy of Decomposition of liquid Hydrogen peroxide (in kJ/mol)?

[匿名]

回覆: 1

2014-05-18 3:16 pm

Chemistry help?

[匿名]

回覆: 1

2014-03-10 4:27 pm

Please help, Chemistry question?

耶穌

回覆: 1

2014-02-23 5:38 am

A series of dilute NaCl solutions are prepared starting with an initial stock solution of 0.100 M NaCl.?

[匿名]

回覆: 1

2014-02-14 3:23 pm

Chemistry questions, please help?

[匿名]

回覆: 1

2014-02-10 1:03 am

Please help me with these chemistry questions!?

[匿名]

回覆: 1

2014-02-04 2:35 pm

Can somebody answer these chemistry questions?

[匿名]

回覆: 1

2014-01-29 6:56 pm

Balacing chemical reaction?

[匿名]

回覆: 3

2013-12-28 1:54 am

How many official movies have been made since the movie camera was invented?

[匿名]

回覆: 1

2013-06-21 11:44 pm

The amount of heat that is released by the reaction of 25.0 g of Na2O2 with water is in kJ?

[匿名]

回覆: 2

2013-05-05 12:23 am

A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 339 mL.?

[匿名]

回覆: 1

2013-04-27 11:50 pm

The half-life of is 30.0 days. What fraction of a sample of this isotope will remain after 16.2 days?

[匿名]

回覆: 2

2013-04-27 11:46 pm

Consider the unbalanced equations above. A 0.250 g sample of a mixture of aluminum and zinc metal is reacted w?

[匿名]

回覆: 1

2012-12-06 9:19 am

Chemical analysis of Semen?

[匿名]

回覆: 1

2012-11-07 6:23 am

Empirical formula of the unknown compound?

jacky

回覆: 1

2012-11-07 3:25 am

What is the concentration of calcium ion in the solution if 0.5g calcium carbonate is dissolved in 10ml acid?

[匿名]

回覆: 1

2012-11-05 3:32 am

What mass of solid KIO3 do you need to make 25 mL of a .20 M Potassium Iodate solution?

[匿名]

回覆: 1

2012-10-08 6:24 pm

How many moles of CO2 would be produced.....?

[匿名]

回覆: 2

2012-03-14 12:32 am

2 HCl(aq) + K2SO3 Chem reactions plz show steps?

[匿名]

回覆: 1

2012-01-26 6:13 am

help with some maths question please?

[匿名]

回覆: 1

2012-01-16 8:03 pm

Math help for midterm exam?

[匿名]

回覆: 1

2011-12-23 4:36 pm

how many moles of Xe required to react completely with F2?