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Murljashka [212]
1 year ago
6

Empirical formula for H2S2O8

Chemistry
1 answer:
NeX [460]1 year ago
4 0
<span>What is the molecular formula of a compound containing 25.6g of oxygen, 12.6g of sulfur and 0.4g of hydrogen? The Mr of the compound is 194.2</span>
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An archaeologist discovers an ancient wooden bowl. which isotope would most likely be used to determine its age?
Vesnalui [34]

Answer:

c

Explanation:

whdkcbwubcdw

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2 years ago
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A sample of 22K gold contains the following: 22 g gold, 1.0 g silver, and 1.0 g copper. What is the percent gold in the sample?
iris [78.8K]

Answer:

35 percent

Explanation:

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Jeff wants to find the volume of a gas in a cylinder. He knows that at 28°C and a pressure of 1 atm, the volume of the gas was 6
emmasim [6.3K]

Answer:

by using ideal gas law

Explanation:

ideal gas law:

PV=nRT

where:

P is pressure measured in Pascal (pa)

V is volume measured in letters (L)

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by applying the given:

P(initial) V(initial)=nRT(initial)

P(final) V(final)=nRT(final)

nR is constant in both equations since same gas

then,

P(initial) V(initial) / T(initial) = P(final) V(final) / T(final)

then by crossing multiply both equations

V (final)= { (P(initial) V(initial) / T(initial)) T(final) } /P (final)

P(initial)=P(final)= 1 atm = 101325 pa

V(initial)= 6 L

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T(final) = 39°c = 39+273 kelvin

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1 year ago
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umka2103 [35]

Complete question from other source attached

Answer:

Explanation:

Catalyzed by DNA polymerase - both. DNA polymerase catalyzes DNA replication in the cell. However, purified versions of the enzyme are also used to synthesise DNA as part of PCR reactions

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2 years ago
A beach has a supply of sand grains composed of calcite, ferromagnesian silicate minerals, and non-ferromagnesian silicate miner
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Ferromagnesian silicate minerals (i looked it up)
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