Chemistry, 01.10.2019 22:00 dannyboy938
Q1) in which of the following layers is atmospheric pressure the lowest?
a. troposphere
b. stratosphere
c. thermosphere
d mesosphere
q2) most of the earth's atmosphere is composed of which of the following two gases?
a. nitrogen and carbon dioxide
b. nitrogen and oxygen
c. methane and argon
d. carbon dioxide and oxygen
q3) what is barometric pressure?
a. the increase in the weight of the atmosphere as elevation increases
b. the pressure of 1 metric ton of seawater
c. the increase in temperature as elevation increases
d. the pressure the atmosphere exerts on an object
Answers: 2
Chemistry, 22.06.2019 04:00, queenkimm26
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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Chemistry, 22.06.2019 22:10, steven0448
Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.
Answers: 1
Chemistry, 23.06.2019 01:30, AptAlbatross
Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2
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Chemistry, 23.06.2019 07:20, msladycie8831
F1.5 mol of nabh4 react, how many moles of b2h6 are formed? 2 nabh4(aq) + h2so4(aq) → 2 h2(g) + na2so4(aq) + b2h6(g)
Answers: 1
Q1) in which of the following layers is atmospheric pressure the lowest?
a. troposphere...
a. troposphere...
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