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jecce.
Questions (11)
What is the period in american history from 1901-1914 called?
3 answers
523 views
Can someone please help me ?
What mass of glycerol must be dissolved in 200.0 g of water to give a solution with a freezing point
1 answer
884 views
can someone balance this equation for me
Fe^2+ Cr2 O7^2- --> Fe^3+ + Cr^3+ Thank you!:D
1 answer
433 views
can someone check these for me ?
Lead(IV)nitrate-- Pb(No3)4 Aluminumoxide-- Al2O Ammoniumphosphate-- NH4(Po4) Perchloric Acid--
8 answers
1,072 views
Thats CaCo3 is equal to 1.838 grams.
**sorry!
1 answer
384 views
From the mass of CaCo3, caluculate the moles of CaCo3 percipitation.
Given- Mass of CaCo3 is 1.838 The answer i got at the end if
1 answer
637 views
If 10.0 g of hydrogen gar reacts with 20.0 g of oxygen gas, how much water will be made?
So far this is all i have: (10.0g
1 answer
829 views
The reusably booster rockets of the U.S space shuttle employ a mixture of aluminum and ammonium perchlorate for fuel. A possile
2 answers
668 views
Calculate the masses of Cr2O3, N2, H20 produced from 10.8 g (NH4)2Cr2O7 [ the 2 belongs to the nh4] in an ammonium dichromate
1 answer
2,004 views
im curious if i post my work on here will anyone check it for me to see if it is right?
8 answers
497 views
A diamond is a natural form of pure carbon. How many atoms of carbon are in a 1.00 carat diamond. (1.00 carat= 0.200 grams)
Helpp
2 answers
889 views
Answers (8)
so what is it the progressive era? I thought it was that but it is too obvious, to me at least.
so im still confused. The answer would be then, Al3O2? and NH4(Po4)3
Ugh. Why is 2,3, and 4 wrong?
whoa. ha your right its 252! i must have put that wrong in the calculator! thanksss!
can you tell me how to add that? because what im doing is (NH4)2 Cr2O7 *****Sorry for my bad typing!
can you tell me how to add that? because what im doing is (NH4)2 Cr2)7 N= 14.00 H= 4x 1.00 = 4 so.. 18.00 x 2 = 36.00 and Cr= 2x 52 = 104 O= 7X 16 = 112 which equals to 216 and then i add 36 and get 776.
Sorry HUGE mistake i made.... this is what its suppose to be. B) i did 1.00g x (1 mole)/(32.00g) and got 3.1x10^-2
ok well i had to find the molar mass of these substances. A) NH3 = 17.00 grams B) N2H4 = 32.00 grams C) (NH4)2 Cr2O7 = 776 grams For the second part i had to find how many moles of compounds are present in 1.00 grams of each substance i found above. A) i