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Yuli
Questions (17)
how do you find time when all you're given are two different speeds the height and the angle?
1 answer
363 views
A toy rocket is traveling to the right at 15.0 m/s when it undergoes a constant acceleration 3.00 m/s^2 to the left
how long does
1 answer
708 views
A gaseous mixture in a 25.00 L container is made of 16.0 g N2 and 14.0 g Ar and
has a total pressure of 1.00 atm. 1.Calculate the
1 answer
1,196 views
cold water
mass of calimeter+ water: 68.66g mass of calimeter: 19.19g mass of water: 49.47g final temperature of water: 39.1C
1 answer
731 views
A 62.7-kg person jumps from rest off a 2.98-m-high tower straight down into the water. Neglect air resistance. She comes to rest
1 answer
435 views
A 65.0-kg skier coasts up a snow-covered hill that makes an angle of 27.4° with the horizontal. The initial speed of the skier
1 answer
874 views
A cable lifts a 1220-kg elevator at a constant velocity for a distance of 39.7 m. What is the work done by the tension in the
1 answer
609 views
A total of 2.00mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 185g of solution.
1 answer
2,109 views
A piston has an external pressure of 9.00 atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to
1 answer
6,076 views
In the following experiment, a coffee-cup calorimeter containing 100mL of H2 is used. The initial temperature of the calorimeter
2 answers
1,220 views
how do i change 2866.0 J to kJ/mol? can someone please help me?
1 answer
358 views
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid
Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g)
5 answers
1,075 views
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid
Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g)
0 answers
558 views
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid
Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g)
5 answers
690 views
A student generates H2(g) over water using the reaction between zinc and hydrochloric acid
Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g)
1 answer
1,128 views
given tanθ= -2√10/3 and π/2<θ< π find:
a.sin2θ b.tan θ/2 could some1 help me with these 2 they're the only ones i
1 answer
423 views
given sinθ=-5/13 and π<θ<3π/2 find
sin2θ cos( θ-4π/3) sin(θ/2) can some1 please help me with this?
1 answer
703 views
Answers (4)
1.so that you can ask questions about steps you do not understand. 2.Tell your teacher 3.poison 4.true All of them are answers for the questions. I got an 100 in a test with this answers, I hope it helps
I did all my questions but there is this last one i don't get. Calculate the number of moles of zinc that must have reacted( assume that Zn is limiting and the yield of H2 gas is 100%) how do you do this? could you help me with this last one please?
how would you calculate the temperature of H2 in kelvin? and the moles that H2 produced? do you know a formula for that? could you please explain it to me thanks for all your help so far i've understood everything thanks to you.
i know and i found a formula to do so. But i was wondering if you could tell me the formula to find the pressure exerted by H2 gas in kPa and also the one to find the kelvin temperature.
