H2SO4 is added to a large beaker of water. How is the solution different from the original water?
a. The solution turns blue litmus to red.
b. The solution turns phenolphthalein pink.
c. The solution has fewer hydrogen ions.
d. The solution has more hydroxide ions.

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g

This statement about matter and its behavior is best classified as a

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.