Ania

This page lists questions and answers that were posted by visitors named Ania.

Questions

The following questions were asked by visitors named Ania.

19. A block of aluminum has a volume of 126.5 cm3. Its density = 2.70 g/cm3. What is the mass of the aluminum? A) 342 g B) 46.9 g C) 127 g D) 0.0213 g E) 124 g The answer is A.....But I still can't figure it out....I keep getting D as an answer..

Write a description of a trip or complicated journey which you or someone in your family recently made.

15 years ago

The most complicated journey I've ever had took place a year ago when I was going home with my friend. We even didn't leave Warsaw when the coach broke down. The driver tried to fix it by himself but he didn't manage. It took 30 minutes. We returned to th...

15 years ago

A total of 10000kg of water per second flows over a waterfall 30m high.If half of the power this flow represents could be converted into electricity, how many 100-W lightbulbs could be suplied?

13 years ago

A crystalline solid consists of atoms stacked up in a repeating lattice structure. The atoms of a crystal reside at the corners of cubes of side L = 0.200 nm. One piece of evidence for the regular arrangement of atoms comes from the flat surfaces along wh...

13 years ago

The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a horizontal, cylindrical tube 58 ft long and is represented in the figure below. Assume an astronaut in training sits in a seat at one end, facing the axis of rotation 29...

13 years ago

which of the following liquids have the highest freezing point? a- aqueous Fe(NO3)3 (0.030) b- aqueous glucose (0.050 m) c- aqueous NaI (0.030 m) d- aqueous NaI (0.010 m) e- pure water please explain the concept behind it as well thank you!

12 years ago

Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 25 degrees C.

12 years ago

an unknown element crystallizes in a face-centered cubic unit cell. with an edge length of 392.4 pm. The solid has a density of 21.09 g/cm^3. what is atomic weight of solid? so what i did was : FC cubic uit --> 4 atoms edge length--> l = 2*root2*r = 392.4...

12 years ago

Can Henry's Law be used for gases that obey the Ideal Gas Law? What about gases that do not obey the ideal gas law? when can you use/Not use henry's law?

12 years ago

for a question it is given that there is 14.6 g of calcium chloride in 246 g of water. Kf is 1.86 C/m we need to find the freezing point of this solution. when i do the calculations, i get the freezing point to be -0.99 (without using the vant hoff factor...

12 years ago

Consider the reaction: CO(g) + H2O (g) <---> CO2(g)+H2(g) which of the following initial composition will NOT achieve equlibrium? a) 0.25 mol H2, 0.35 mol CO2, and 0.25 mol CO b) 0.25 mol CO, 0.75 mol H2O c) 1.0 mol of CO2 and 0.50 mol H2 d) 0.85 mol CO a...

12 years ago

The normal freezing point of cyclohexane is 6.55 C. When 0.458 g of benzophenone is dissolved in 15.0 g of cyclohexane, the freezing point is found to be 3.19 C. What is the experimental molar mass of benzophenone? (Kf cyclohexane = 20.0 C m^-1). A) 182 B...

12 years ago

Is 3NaHCO3+C6H8O7=C6H5Na3O7+3CO2+3H20 A combustion reaction?(alka seltzer tablet reacts with water).

6 years ago

Answers

The following answers were posted by visitors named Ania.

You can invent some story...Please

15 years ago

:( Ok, I will try to write something... but I'm from Poland and I my English isn't very well. Thank you

15 years ago

Thank you so much!

15 years ago

Sorry, but I'm from Poland and my English isn't very well. I think it's good enough for me. (I'm 15 years old) Thanks for your opinion.

15 years ago

jishka won't let me post the website, but when you google the question its the second result.

13 years ago

please explain steps/thinking thank you!

13 years ago

so water would have the highest freezing point? it wouldn't be aqueous NaI at 0.010 m ? i thought that lower concentration means higher freezing point, or is that only if they are all the same compound ?

12 years ago

yes that makes sense, thank you!!

12 years ago

75%

7 years ago