well im not sure... my teacher isnt know 4 bein that smart... ive proved him wrong soooooo many times... ne way i cant even remember the bull i put down 4 that q
ok heres wat i got for the calcium carbonate question...
Q:
10g o CaCO3, 50mL = 0.05L of 1 Mol/L HCl... Volume of CO2?
A:
Eqn is: CaCO3 + 2HCl --> CO2 + H2O + CaCl2
num of moles of CaCO3 = 10g/100.05 = 0.09995moles
num of moles of HCl = 0.05 moles
so since theres lees HCl its the...
Can i pleez get a UAI prediction?
I got to a catholic skool ranked about 120...
Math ext2 (85) 2/12
Math ext1 (92) 2/44
Physics (88) 1/44
Chemistry (80) 2/30
Standard English (82) top10/142
(marks are my percentage out of a hundred, weightings for each assessment have been taken into...
Ive got this assignment question worth 3 marks that i really need help on... i couldnt find any information on it in any textbooks or on the net as it is not related to any specific topic but is more general. Anyway, here it is:
Scientific research is rarely conducted in isolation, however...
Superconductors & Critical Temperatures
As the temperature of the conductor increase the vibration of the ions also decreases. Hence the electrical resistance of a metallic conductor should decrease to a low but non-zero value as the temperature deceases toward absolute zero. However below...
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