Macey

This page lists questions and answers that were posted by visitors named Macey.

Questions

The following questions were asked by visitors named Macey.

A sloution of calcium nitrate, C(NO3), reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride, CaF2, and ammonium nitrate, NH4NO3(ag). When 45.00 mL of 4.8724 x 10 -1M Ca(NO3)2 solution was added to 60.00 mL of 9.9981 x 10 -1M N...
15 years ago
Heating 1.124g of an unknown NaHCO3-NaCl mixture resulted ina mass loss of 0.270g. 1) Calculate the mass of NaHCO3 present in the original mixture. 2) Calculate the mass percent of NaHCO3 in the uknown mixture
15 years ago
Write the complete and net ionic equations for the following reactions. Be sure to indicate the states of the reaction products. 1) AgNO3(aq) + NaCl(aq) ----> 2) CaCl2(aq) + Na2SO4(aq) ----> 3) Pb(ClO4)2(aq) + NaOH(ag) ----> 4) (NH4)2SO4(aq) + BaCl2(aq) -...
15 years ago
This one stumped me alot... Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO4 2-, CO3 2-, PO4 3-, OH-, or S 2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This comp...
15 years ago
what is the empirical formula of a compound that is 62.0% C, 10.4% H, and 27.5% O by mass?
15 years ago
Suppose you and a friend each take different random samples of data pairs (x,y) from the same population. Assume the samples are the same size. Based on your samples, you compute r = 0.83. Based on her sample your friend computes 0.79. Is your friend’s va...
13 years ago
Hello. I have a history project and I really need help with thinking of a catchy phrase. It has to do with the first amendment and its also a public service announcement. If anyone has any ideas please help me out. Thank you very much.
9 years ago
Write a function that represents the situation. Find the balance A in the account after the given time period t . $2000 deposit that earns 5% annual interest compounded quarterly; 5 years
8 years ago

Answers

The following answers were posted by visitors named Macey.