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The identity of an unknown

An unknown gas occupies 14.6 L at STP and has a mass of 19.5 g.The unknown gas is either methane (CH4), carbon dioxide (CO2),
1. 1 answer
2. asked by help pls
3. 407 views
Chlourine monoxide reacts with flourine gas to give a new unknown gas that contains Cl, O and F. In an experiment you find that
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2. asked by Anonymous
3. 488 views
According to research in South Africa and overseas, which identity status is most likely to be formed in adolescents from more
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2. 28 views
An unknown metal has a volume of 20cm^3 and a mass of 54g. What is the likely identity of the unknown metal?could i please have
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2. asked by becca
3. 901 views
He has narrowed the identity of hisunknown to either molecule X, molecule Y, or molecule Z. The Merck Index tells him that all
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2. asked by Sean
3. 633 views
A gas of unknown identity diffuses at a rate of 83.3 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate
1. 2 answers
2. asked by Cali234
3. 5,013 views
You are a scientist who is tasked with figuring out the identity of an unknown wave. The wave has a velocity of 16,000nm/s and a
1. 7 answers
2. asked by linda
3. 60 views
You are a scientist who is tasked with figuring out the identity of an unknown wave. The wave has a velocity of 16,000nm/s and a
1. 1 answer
2. asked by anonymous
3. 74 views
So I have to find the % by mass of an unknown metal that reacted with HCl to create MCl2 (with the M being unknown). Then I need
1. 2 answers
2. asked by Krys
3. 1,069 views
A 28.3 g piece of unknown metal is dropped into a graduated cylinder that has an initial volume of 14.2 mL. If the final volume
1. 3 answers
2. asked by Jessica
3. 2,418 views