1. A 50g block of aluminum at-100°C is submerged in 30g of water at 20°C. Cwater = 4.184 J/gºC
CA = 0.89 J/gºC
AHrus water = 334 J/g
a. What is the final temperature of both substances?
b. How much energy is gained by the block of aluminum?

What is the overall order of reaction for rate = k[no]2[o2]

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!