3 years ago

If an effusion experiment, it required 45 seconds for

1 answer:

8 0

Answer: A vacuum. Under the same conditions 16 s were required for the same number of moles of O2 to effuse. ... The molar mass of the unknown gas is 200 g/mol. calculation ... QUESTION 1 If gas-burning appliances are vented into an unlined masonry chimney, deteriorate and crumble and may · PLS HELP

Explanation:

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An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?

ludmilkaskok [199]

<h2>Answer: # of neutrons = 9</h2>

<h3>Explanation:</h3>

# of neutrons = mass number - atomic number

= 17 - 8

= 9

<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>

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2 years ago

The burning of methane gas, given below, is a redox reaction. which part of the reaction illustrates oxidation?

Effectus [21]

The burning of methane gas, given below, is a redox reaction. which part of the reaction illustrates oxidation, Ch4+O2---CO2+H2O<span>CH4---CO2</span>

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3 years ago

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saul85 [17]

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Calculate the pressure in torr that a 0.44 g sample of carbon dioxide gas would exert at a temperature of 46.2 C when it occupie

svlad2 [7]

Answer: 0.052torr

Explanation: Please see attachment for explanation