Wil give
question 7 (4 points)
(05.04 lc)
match the term to its description.
column a
1.
prominences
:

prominences

2.
solar flares
:

solar flares
3.
sunspots
:

sunspots
4.
convection
:

convection
column b
a.
brief eruptions of intense high-energy radiation from the sun's surface
b.
dark spots appearing from time to time on the sun's surface
c.
streams of glowing gas that shoot out from the sun in an arch
d.
the rise of hotter, less dense fluid and the sinking of cooler, denser fluid

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.

Which statement best describes the flow of energy in this scenario

Mercury turns to vapor at 629.88 k how much heat is lost 175 g of mercury vapor at 650 current condenses to a liquid at 297 ca mercury turns to weber at 629.88 kelvin how much he is lost 175 g of mercury vapor and 650 coming condensers to liquidate 297 kevin