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Asteroids are mainly composed of metals like iron and nonmetals like carbon. Briefly explain the differences between metals and nonmetals based on your knowledge of the periodic table.
A sample of gas occupies 1.40*10^3 ml at 25 degrees C and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg
Given Data; P4+6Cl2=4PCl3 change temp= -2439 kj ,4PCl5=P4+10Cl2 change temp= 3438 kj calculate change in temp for the reaction PCl5=PCl3+Cl2.
Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42-
14.0 moles of gas are in a 5.00 L tank at 23.4 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L2*atm/mol2 and b=0.430L/mol
Calculate the volume of 6.00 M NaOH that can be added to a buffer composed of 0.160 mol CH3CHOHCO2H and 0.179 mol CH3CHOHCO2- in 500 mL water before the buffer capacity is exceeded.
calculate the final temperature when a 20.4 gram sample of ice at 0oc is placed into a styrofoam cup containing 111
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
Be sure to calculate what volume of each 0.50M solution should be mixed to give a total volume of 50.0mL and the reactants in the correct stoichiometry.
The reaction in Eq. 1 is zero order with a rate constant of k=0.5 mol L^-1 s^-1. Assuming that the initial concentration of A and B are 10. mol/L and 20. mol/L respectively:
3.2 x 10-3 moles of O2 gas effuse from a container in 10.0 minutes. How many moles of CH4 gas could effuse from the same container in 10.0 minutes under the same conditions
A mixture of NACI and sucrose of combined mass of 10.2 g is dissolved in enough water to make up 250 mL solution. The osmotic pressure of the solution is 7.32 atm at 14*C. Calculate the mass percent of NACI in the solution.
Calculate the molarity of a solution made by dissolving 0.650 Na2SO4 grams of in enough water to form exactly 950 mL of solution.
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