07/05/20
Naming and drawing Hydrocarbons
I need help with naming the hydrocarbons for #3 a-f please and thank...
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06/25/20
Decide which of the following acids is strongest and explain why: CF3COOH, CCl3COOH, CBr3COOH
Decide which of the following acids is strongest and explain why: CF3COOH, CCl3COOH, CBr3COOH
06/15/20
Describe a method that could be used to determine which metal is more reactive.
You are given two metals zinc and copper. Describe a method that could be used to determine which metal is more reactive. In your explanation, outline the worded chemical equations for the...
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06/15/20
Describe a method that could be used to determine which metal is more reactive.
You are given two metals zinc and copper. Describe a method that could be used to determine which metal is more reactive. In your explanation, outline the worded chemical equations for the...
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06/11/20
Heat reactions...
A student dissolves 11.1 g of sodium hydroxide NaOH in 250g of water in a well-insulated open cup. She then observes the temperature of the water rise from 21.0°C to 32.7°C over the course of 7.4...
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06/09/20
Can anybody help me answer this?
You are performing a titration. In the Erlenmeyer flask, you have placed 15mL of H2SO4 and you have also added phenolphthalein indicator. In the burette, you have 0.5mol/L KOH, and you slowly add...
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06/05/20
The specific heat of mercury calculated from her data
In the laboratory a student finds that it takes 17.9 Joules to increase the temperature of 10.3 grams of liquid mercury from 23.8 to 37.5 degrees Celsius.The specific heat of mercury calculated...
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06/05/20
he average molecular speed in a sample of H2 gas
The average molecular speed in a sample of CH2 gas at a certain temperature is 659 m/s.The average molecular speed in a sample of H2 gas is __________ m/s at the same temperature.
06/05/20
the standard enthalpy of formation of CO(g)
A scientist measures the standard enthalpy change for the following reaction to be 200.6 kJ:CH4(g) + H2O(g)3H2(g) + CO(g)Based on this value and the standard enthalpies of formation for the other...
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06/02/20
Will Caso4 precipitate if 50 ml of 0.0010 mol/L cacl2 (aq) is added to 50 ml of 0.010 mol/L Na2 So4 (aq)?
Will Caso4 precipitate if 50 ml of 0.0010 mol/L cacl2 (aq) is added to 50 ml of 0.010 mol/L Na2 So4 (aq)?ksp for Caso4 =2.4*10^-5 a)no precipitation will occur b)There is not enough information...
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06/02/20
Suppose that 3.00 mol of NO(g) is introduced into a 1.00L flask. When the system comes to equilibrium, 1.00 mol of N2O has formed .
Suppose that 3.00 mol of NO(g) is introduced into a 1.00L flask. When the system comes to equilibrium, 1.00 mol of N2O has formed . 2N2O(g)+O2(g)⇌ 4NO(g)What is the equilibrium concentration of...
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05/22/20
What is intermolecularforces of the following, please write all of those
intermolecular forces Of Brf5, ccl4, becl2, so2, po4
05/21/20
Limiting and Excess Stoichiometry Questions
Please Help. Thanks alot.1. What mass of Al2 SO4 is needed to create 100g of Al(NO3 )3 in the reaction below (NOT BALANCED):Al2(SO4)3 + Ba(NO3) =2. Copper (II) chloride reacts with sodium nitrate...
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05/20/20
If you end up with 8.53 grams of H2O, how many grams of O2 did you consume in this reaction?
Reaction:__ B2H6 + _3_ O2 → _2_ HBO2 + _2_ H2O
05/18/20
Combined gas law
can Someone help me solve my last chem problemA 12 liter tank contains 7 moles of oxygen. The pressure in the tank is 660 kPa at 25 C. If this oxygen tank were to leak, and lose 3 moles of O2 gas...
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05/17/20
Please help with this chemistry problem
A researcher measures 0.70 mol lead(II) acetate salt and 0.50 mol lead(II) bromide salt. The two solid salts are combined dry and finely powdered. Then the solid mixture is combined with water,...
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