Mercury vapor contains Hg atoms. What is the volume of 200. moles of mercury vapor at 822 K and 0.500 atm?

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0

Acm ruler with main graduations from 1 to 10 from left to right there are 10 secondary graduations between each of the main graduations there is a line that begins. at the left end of the ruler 10 secondary graduations to the left of the “1 main graduation the right end of the line ends on the eighth secondary graduation to the right of 3 how long is the line