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irina [24]
3 years ago
8

When solid (S1) is heated, it breaks up into a gas (G) and another solid (S2). All three of these chemicals are pure substances.

On the basis of this information alone, which of these must be compounds? Why?
Physics
1 answer:
Kisachek [45]3 years ago
8 0

Answer:

S1

Explanation:

Has to be S1. This is pretty glaring to me. It's said from the question that the chemical reaction that took place is given by the following

S1 + G = S2, with S2 being an offspring of the first S1. When S1 got reacted, it broke down into S2, so, this only confirms that both S1 and E2 are S3 are compounds.

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Hawk maintains a consistent internal temperature in both the heat of the day in the cool of the night. This is called
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4 years ago
a bubble of air of volume 1cm^3 is released by a deep sea diver at a depth where the pressure is 4.0 atmospheres. assuming its t
lys-0071 [83]

Answer:

hope this helps!

Explanation:

Volume of the air bubble, V1=1.0cm3=1.0×10−6m3

Bubble rises to height, d=40m

Temperature at a depth of 40 m, T1=12oC=285K

Temperature at the surface of the lake, T2=35oC=308K

The pressure on the surface of the lake: P2=1atm=1×1.103×105Pa 

The pressure at the depth of 40 m: P1=1atm+dρg

Where,

ρ is the density of water =103kg/m3

g is the acceleration due to gravity =9.8m/s2

∴P1=1.103×105+40×103×9.8=493300Pa

We have T1P1V1=T2P2V2

Where, V2 is the volume of the air bubble when it reaches the surface.

V2=

8 0
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