Ask a New Question
Search
Questions and answers by
Lilit***
Questions (7)
What approach do you suggest using to prevent your water sample from cooling off before you start your measurements?
1 answer
702 views
If a 5.26-g sample of copper at 258 °C is placed in 125 mL of water at 21.0 °C, how hot will the water get? Assume no heat
2 answers
1,387 views
If the warm water in this experiment is at 98 °C, how much heat must be released in order for the temperature of 100. mL of
1 answer
1,393 views
What is the balanced chemical equation for the reaction used to calculate of delta Hdagrees f of CaCO3(s)?
1 answer
613 views
What is delta Hrxm dagrees for the following chemical reaction?
CO2(g)+2KOH(s) = H2O(g)+K2CO3(s) Express your answer in
2 answers
530 views
What is the enthalpy for reaction 1 reversed?
reaction 1 reversed: 2CO2+3H2O=C2H5OH+3O2 express the answer in kJ/mol
1 answer
1,696 views
A frost-free refrigerator uses about 640 kWH of electrical energy per year.
Express this amount of energy in J: kJ: Cal:
1 answer
552 views
Answers (5)
how do u solve for Tf
well 1/4 is = 0.25 that is just a point or a number but 1/4% is 0.25% than that's just a percentage which is out of 100%.
you mean: 5x^2-10x 5x(x-2) but is this equation equal to 0 zero? if yes than your points are 5x=0 x=0 and x-2=0 so your other x is 2
well do you know the deciaml and the whole number in this case. Ex: 0.5/2 = 0.25
well since a die has only 6 numbers you would take all the odd numbers out of the six Odd(1,3,5) so than a probability of an odd # greater than 1 would be P(3,5) b)number less than five P(4,3,2,1) c)i am not sure on this one, but since a die doesnt have a
