A wave has a frequency of 10 Hz and a wavelength of 30 m. What is it's speed? Be sure to show your calculations and put units in your answer!

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

What are transitions between a liquid and gas called? identify which way they are transitioning

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 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.