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Kalen
Questions and answers by visitors named
Kalen
Questions (16)
What is the sign of the entropy change in eaech chemical reaction?
a) N2O4(g)--> 2NO2(g) b) PCl3(g) + Cl2(g) --> PCl5(g) c) 2
3 answers
2,022 views
What am I doing wrong?
Estimate the normal boiling point of liquid mercury Hg(l) <--> Hg(g) Hf 0.0 61.4 S 75.9 174.97 DH = 61.4
3 answers
1,716 views
A chandelier with mass m is attached to the ceiling of a large concert hall by two cables. Because the ceiling is covered with
3 answers
1,767 views
Blocks with masses of 1kg , 4kg , and 6kg are lined up in a row on a frictionless table. All three are pushed forward by a 50N
4 answers
2,077 views
We are learning about circular motion, uniform and non uniform. how do you find tension in a string, when the string is attached
6 answers
606 views
A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g
4 answers
1,456 views
if 30.0 grams of molten iron (III) oxide reacts with 275 grams of aluminum, what is the mass of the iron produced.
2 answers
544 views
Given the balanced equation, how many milliliters of oxygen gas at STP are released from the decomposition of 5.05 g of calcium
3 answers
400 views
Consider the following chemical equation:
HgO(s) → Hg(l) + O2(g) How many milliliters of oxygen gas at STP are released from
2 answers
597 views
Consider the following chemical equation.
MnCl2(s) + H2SO4(aq) → MnSO4(aq) + 2 HCl(g) How many grams of manganese(II) chloride
4 answers
1,327 views
Consider the following chemical equation.
H2(g) + I2(g) → HI(g) Assuming all gases are at the same temperature and pressure,
1 answer
1,081 views
Consider the following chemical equation.
Cl2(g) + O2(g) → Cl2O3(g) Assuming all gases are at the same temperature and
2 answers
733 views
Consider the following chemical equation.
SO2(g) + O2(g) → SO3(g) What volume of sulfur dioxide gas reacts with 37.5 L of O2?
2 answers
546 views
write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x),
1 answer
498 views
write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians. answers: sqrt2sin (x+3pi/4), sqrt2sin
1 answer
429 views
What is needed to repay the loan at the of month of an 18 month installment loan for $1700 at 12% annual interest? Interest is
1 answer
452 views
Answers (2)
In the total tension, what does &radic mean? Total Tension, T = &radic(T²+(mg)^2) The angle tan-1(mg/Tc) is the angle with the horizotal
Would the force of the 4kg block acting on the 1kg block be the mass=4kg+6kg times the acceleration =50/11?
