戇戇居士

what is the reaction of carbon and oxygen?

What is the entire reaction mechanism for 1-butanol with ammonium bromide in the presence of sulfuric acid?

At an underwater depth of 255 ft , the pressure is 8.39 atm .?

Acidity of phenol and aminophenol?

Calculate the average rate of the following reaction in g of Cu/second.?

N2O5 + Oh?

I need homework help!?

Calculating Ionization Energy?

Is Benzene rigid? Is there much flexibility to it? I thought no when I built the model but some people are saying it is rigid?

outline the mechanism for the reaction between propene and conc.H2 SO4?

pH of Solution. Help Chemistry?

Chemical equation: A+B2→AB2 How many moles of product can be made from 0.70 mol of A and 1.0 mol of B2?

im confused? i think its sp but im not sure?

A solution has [H+] = 1.0 x 10-10 M. The pOH of this solution is __________.?

For the following chemical reaction: C6H12O2+6 O2—> 6 CO2 +6 H2O +energy what substances are oxidized and what ones are reduced.. HELP?

4 diff gases added in container. the pressure of the 4 gases each is 1.5 atm,912 mmHg,14 torr, and 0.87 atm. what is the resulting pressure?

What is the pOH of a solution that has a hydroxide ion concentration of a 0.01 M HCl solution?

Ca+N-->Ca3N2 -What is limiting reagent? -Mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen? -Excess?

A hydrocarbon, C4H6 absorbs two moles of hydrogen in the presence of platinum as catalyst.?

A 7.0 g sample of a hydrocarbon is subject to combustion analysis. The mass of CO2 collected is 22.0 g.?

Chemistry Acid/Base Reaction Help?

Help me solve this problem...?

What product forms from butylamine and cyclohexanone in the presence of a reducing agent?

Arrange the following electrophiles in order of increasing reactivity for an Sn1 reaction...?

How many grams of phosphorus (P4) are needed to completely consume 40.5 L of chlorine gas according to the following reaction at 25 °C and?

Oxygen gas is commonly sold in 46.5 L steel containers at a pressure of 130 atm.?

Molarity help?

Expand (1+X+2X^2)^6 as far as the term x^3?

What is the net ionic equation, including phases, for the reaction of AgNO3(aq) with K2SO4(aq).?

ZnO+HCl ---> ?

Chemistry ASAP?

Identify the solvent and solute in each solution.?

An atomic cation with a charge of +1 has the following electron configuration: 1s22s22p6?

what volume of 0.400 mol/L solution may be prepared from 83.0g of solid KI?

using P4(g) + 6Cl2(g) → 4PCl3(g) determine what bonds are broken and what bonds are formed.?

what is the balanced symbol equation for... calcium + nitric acid = calcium nitrate + hydrogen?

Help with Chemistry question!!?

If you add 25ml chemical to 50ml H2O, pour out 25ml of the solution, then another 25ml of the chemical, what's the ratio of chemical to H2O?

Oxidation numbers and electron process?

How many liters of N2 are produced at STP?

Chemistry help?

What is the major product for this organic reaction? Please help, i keep getting it wrong!?

Calculate the standard enthalpy of formation of NO(g) (in kJ/mol) from the following data.?

If you start with 390 grams of Al2(SO3)3 , how many grams of Na2SO3 would be produced?

Sample of gas has a mass of 0.545 g. Its volume is 113 mL at a temperature of 75 ∘C and a pressure of 751 mmHgFind the molar mass of the gas?

at what temprature the root mean square velocity of a molecule of gas will be double of the value at 0 celcius?

Need help with chem. thanx :)?

whats is the mass of potassium iodide (166.00g/mol) that yields 0.500 g of lead (II) iodide (461.0g/mol) precipitate?

Oxidation Numbers?

IB Chemistry 1998 HL Question?