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| Questions:
TimeLeft: Posted: |
Chemistry
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calculate the number of potassium ions in 34.4 grams of potassium nitrate. more... |
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Nov 19th |
What is
a) milk
b)iron nail
c)glass
more... |
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Nov 19th |
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What is the lewis structure for H2O+N2= H2N20? more... |
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Nov 18th |
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How many oxygen atoms are there in 20.00 grams of Al3(CO3)2? I simply need the # of oxygen atoms in correct significant digits, if possible. The num more... |
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Nov 16th |
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Write the equation for the dissociation of cobalt(II)carbonate and the Ksp expression of the reaction. more... |
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Nov 15th |
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Captain heroperson is thirsty and has devised a way to capture the water from this reaction. How many Grams of water will Captain Heroperson have to d more... |
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Nov 11th |
Consider the square pyramidal AB5 molecule:
Using the correct character table, determine the possible hybridization schemes for the central atom A more... |
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Nov 9th |
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what element has the following groundstate electron configuration? (Kr) 5s2 4d10 5p1 more... |
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Nov 7th |
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what are the moles of the following elements helieum, neon magneisum calcium potassium more... |
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Nov 5th |
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by using a proportion to find a percent what is 28% of 5200? more... |
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Nov 5th |
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A bomb calorimeter has a heat capacity of 675 J/°C and contains 925 g of water. If the combustion of 0.500 mole of a hydrocarbon increases the tem more... |
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Nov 5th |
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A student titrates 22.32 mL of vinegar with O.5172 M NaOH. The initial NaOH buret reading is 1.18 mL and the final NaOH buret reading is 21.35 mL. Wha more... |
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Nov 4th |
the pKsp of AgCN as 15.66. Imagine doing a titration in which 20.00 mL of 0.0200 M NaCN(aq) is titrated with 0.0100 M AgNO3(aq).
Use the methods more... |
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Nov 2nd |
A 5% glucose solution is a typical solution used in the hospital. How many grams of glucose are in 500 mL of a 5% glucose solution?
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Oct 31st |
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Discuss the similarities and differences between a sodium atom and a sodium ion. more... |
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Oct 29th |
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