Count the significant digits in each of these measurements: measurement number of significant digits −×2.010−3kJ/mol 72600.kg 0.007700J ×5.710−1mL

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

50 pts plz what is the physical state of matter of baking soda.

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.