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#1: In the reaction 2K + 2H2O> 2KOH + H2, which compound has an element ratio of 1 : 1 : 1?
A. K
B. H2O
C. KOH
D. H2
**my answer; C
is that right?? :/ @aaronq :)
 one year ago
 one year ago
#1: In the reaction 2K + 2H2O> 2KOH + H2, which compound has an element ratio of 1 : 1 : 1? A. K B. H2O C. KOH D. H2 **my answer; C is that right?? :/ @aaronq :)
 one year ago
 one year ago

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aaronqBest ResponseYou've already chosen the best response.1
its right (Y) off to a good start!
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#3: A substance has half the number of particles as 12 grams of carbon12. How many moles are in the substance? A. 0.5 B. 1.0 C. 1.5 D. 2.0 **my answer; A is that right? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#4: Which of the following has 1.8 × 10^24 hydrogen atoms? A. 1 mole of water (H2O) B. 1 mole of peroxide (H2O2) C. 1 mole of ammonia (NH3) D. 1 mole of hydrogen gas (H2) **my answer; C is that right?
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#5: What is the molar mass of magnesium sulfate heptahydrate (MgSO4 7H2O)? Be sure to include the mass of all elements in the formula including the elements in water. A. 246 g/mol B. 138 g/mol C. 120 g/mol D. 73 g/mol ** my answer: A is that correct?? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#6: You have 100 grams of rubidium bromide (RbBr). How many moles do you have? A. 0.61 mol B. 1.00 mol C. 1.22 mol D. 2.00 mol **my answer: A is that right? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#7: What volume will 0.75 moles of oxygen gas occupy at STP? A. 16.8 L B. 20.0 L C. 22.4 L D. 33.6 L **my answer: A is that right @aaronq ?? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#8: You have a 5liter container with 1.30 × 10^24 molecules of ammonia gas (NH3). How many molecules of hydrogen gas (H2) are in an identical container at the same temperature and pressure? A. 6.02 × 10^23 molecules B. 2.00 × 10^23 molecules C. 6.02 × 10^24 molecules D. 1.30 × 10^24 molecules **my answer; D is that correct??? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#9: What mass will 33.6 L of oxygen gas (O2) have at STP? A. 16 g B. 32 g C. 34 g D. 48 g **my answer; D. 48 g is that right???
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
#10: You have one mole of a diatomic gas. Which of the following statements is true? A. You have onethird the number of particles that are in 12 grams of carbon12. B. You have the same number of particles that are in 12 grams of carbon12. C. You have three times the number of particles as in 12 grams of carbon12. D. You have six times the number of particles that are in 12 grams of carbon12. **my answer; B is that right??? :O
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.1
yeas you have one mole of particles, ( two moles of atoms )
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
wait, so 210 are correct?? :/
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.1
i have only checked #10 so far
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
and sorry!! here is #2, look like it got deleted :( #2: In which of the following reactions do five total molecules of reactants produce four total molecules of products? A. N2 + 3H2 > 2NH3 B. SnO2 + 2H2 > Sn + 2H2O C. 2H2S + 3O2 > 2SO2 + 2H2O D. 2SO2 + O2 > 2SO3 my answer; A is that right??
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.1
#2 is not right option A N_2 + 3H_2 is only four particles of reactants #3 is right
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
ok :) so what is #2 then?? is it C? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
awesome! :) what about 49? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
:) yayy!! what about 79? :)
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
okay! yay!! :) is 8 right too?
 one year ago

UnkleRhaukusBest ResponseYou've already chosen the best response.1
i think #8 is right too
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
okay great!! thanks!! :) @UnkleRhaukus can u pls give @aaronq a medal?? i can only give one :(
 one year ago

aaronqBest ResponseYou've already chosen the best response.1
haha aw thanks guys, medals all around
 one year ago

iheartfoodBest ResponseYou've already chosen the best response.1
haha yeah :) and thanks!! thanks for all ur help!!! :D
 one year ago
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