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ehidna [41]
2 years ago
14

Help plz I will give u BRAINLIST

Chemistry
1 answer:
Agata [3.3K]2 years ago
6 0

CS2 + 3O2 = CO2 + 2SO2

1 mole of CS2 gives 1 mole of CO2

12 + 2(32) = 76g of CS2  yields 44 g of CO2

Theoretically 1 g of CS2 yields 44/76 g CO2

Therefore 50 g CS2 should yield    50*44 / 76 = 28.95 g

So % yield = 103.6 %  ( which is not possible  because you can't create matter from nothing).

The 30g cannot be right . This is experimental err.

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antiseptic1488 [7]
C. Composition

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3 0
3 years ago
When an irregularly shaped chunk of an unknown metal with a mass of 25.32 g was placed in a graduated cylinder containing 25.00
inn [45]

Answer: The density of the unknown metal is 7.86 g/ml.

Explanation:

Density is defined as the mass contained per unit volume.

Density=\frac{mass}{Volume}

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Putting in the values we get:

density=\frac{25.32g}{3.22ml}

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7 0
3 years ago
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astraxan [27]
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8 0
2 years ago
The arrows in the chart below represent phase transitions. Three bars are shown labeled Solid, Liquid, and Gas. They are connect
tester [92]

Answer:

1,2,3

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4 0
3 years ago
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