Thursday
April 24, 2014

Posts by TROUBLED


Total # Posts: 22

Physics
When dealing with circular motion; a string with the length of .4m is being spun horizontally, is the radius .2m?

Physics
HINT: First find the weight of the cart, then solve it with his horizontal push force.

Physics
An answer key provided, although I was in a bit of a rush so I could have possibly copied the answer down wrong...

Physics
The carnival ride shown in Figure 7-18 has a 2.0 m radius and rotates once each .90 s a. Find the speed of the rider. b. Find the centripetal acceleration of the rider. c. What produces this acceleration? SOLUTIONS PROVIDED: a. 141 b. 98 c. --Explain-- Completely stuck and I d...

chemistry
whats the oxidation number for all the elements in the following compound BaNaPO4

chemistry
what is the oxidation number for sulfur in K2S2O8

chemistry
Fe2+ + MnO4- + Fe3+ + Mn2+ which of the elements is undergoing oxidation and which of the elements is the oxidizing agent?

chemistry
what mass of potassium chloride is required to prepare 5.00L of a 2.00M solution of KCL

chemistry
calculate the heat of combustion for the following reactions from the standard enthalpies of formation 2H2(g) + O2(g) = 2H2O(l) 2C2H2(g) + 502(g) = 4CO2(g) + 2 H2O(l)

chemistry
calculate the heat of combustion for the following reactions from the standard enthalpies of formation 2H2(g) + O2(g) = 2H2O(l) 2C2H2(g) + 502(g) = 4CO2(g) + 2 H2O(l)

chemistry
A 0.1375-g sample of magnesium is burned in a constant volume calorimeter tha has a heat capacity of 3024 J/C. the temperature increases by 1.126 C. calculate the heat given off by the burning Mg in kJ/g and kJ/mol

chemistry
write the molecular, ionic and net ionic equation for the following Ph(NO3)2 + NaOH Pb(NO3)2 + Na2CO3 Ni(NO3)2 + NaOH Ni(NO3)2 + Na2Co3

chemistry
a portion (10.0 ml)of a solution containing the chloride anion was treated with silver nitrate to yield a precipitate (0.1713 g) of the silver chloride. calculate the molar concentration of the chloride anion in the solution. first write the equation.

chemistry
a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

chemistry
a solution of an unknown metal chloride (0.08870 g ) was treated with silver nitrate to yield AgCl ( 1.9132 g ). calculate the percentage by mass of chlorine in the unknown chloride

chemistry
a solution of an unknown metal chloride (0.8870 g) was treated with silver nitrate to yield (1.9132 g). calculate the percentage by mass of chloride in the unknown chloride

chemistry
a solution of an unknown metal chloride (0.8870 g) was treated with silver nitrate to yield (1.9132 g). calculate the percentage by mass of chloride in the unknown chloride

chemistry
calculate the volume of mL of a 1.420 M NaOH solution required to titrate the following solution. 25.00 mL of a 1.500 M H3PO4 solution

chemistry
A 3.664 g sample of monoprotic acid was dissolved in water and required 20.27 mL of a 0.1578 M NaOH solution for neutralization . Calculate the molar mass of the acid

chemistry
predict the outcome of mixing aqueous solutions of the following reactions. write the ionic equations of each. mercury (ll) nitrate + ammonium iodide manganese (ll) chloride + sodium sulfide lead (ll) nitrate + sodium sulfate barium nitrate + lithium sulfate aluminum sulfate +...

CHEMISTRY
WHEN 92.50 MOL HYDROGEN REACTS, WHAT QUANTIY (MOL) OF NITROGEN IS CONSUMED AND WHAT QUANTITY (MOL) OF AMMONIA IS PRODUCED?

CHEMISTRY
WHAT IS THE MASS IN GRAMS OF AMMONIA PRODUCED WHEN 280G NITROGEN REACTS TO FROM AMMONIA

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