DUE NOWWW 1. How many seconds are in a leap year? Show work using dimensional analysis
method.

2. Which is longer, 230 m or.023 Km? Prove your answer by calculations. Show
work.

Scientist wants to react a barium chloride salt with an acid. to speed up the reaction, the scientist crushes the barium chloride salt until it is a fine powder. this speeds up the reaction by a. increasing the ph of the salt. b. increasing the surface area of the salt. c. increasing the pressure of the salt. d. increasing the temperature of the salt. im thinking more a not 100% sure

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

What’s a special glass that most beakers are made of