Answer:
Pascal is the most common unit for measuring pressure
The average sea level pressure is 1013 mbar
Answer:
12.455≈12.5 tons
Explanation:
1 US gallon of water (gal) = 8.35 pounds of water (lb wt.)
so we divide 208,000 by 8.35 to covert to pounds
then divide the pounds by 2000 to convert to tons.
Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds.
1identify the #
2place a decimal in a location which would make a #between 1and9
3 count the # of space values that the decimal moved
4 plug the numbers into this formula number from step 2×10 place value
example:
1) 330,000
2) 3.3 0000
3) count the places moved 5
4)plug the # in 3.30×10 to the 5th power.
9,000 meters
Because density is altered by altitude, the helium balloon can reach a height of 9,000 meters, or 29,537 feet. Anything higher than this altitude will cause the helium within the balloon to expand and the balloon to pop.
