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lisabon 2012 [21]
3 years ago
6

True or false A(n) rift valley forms where plates diverge on land.

Chemistry
2 answers:
motikmotik3 years ago
4 0

Answer:

True

Explanation:

vlabodo [156]3 years ago
3 0

Answer:

true

Explanation:

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Strong acids, strong bases, and salts are strong electrolyte.
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"a gaseous mixture contains 414.0 torr of h2(g), 345.7 torr of n2(g), and 80.1 torr of ar(g). calculate the mole fraction, x, of
DENIUS [597]
<span>The gaseous mixture contains 414.0 torr of h2(g), 345.7 torr of n2(g), and 80.1 torr of ar(g). Then, total pressure of the gas would be: 414 torr + 345.7 torr + 80.1 torr= 839.8 torr
The mole fraction of each gas:
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3 years ago
The heat of a reaction may be found with the equation q=mcΔT.
sweet-ann [11.9K]

Answer:

B) -1551 kJ  

Explanation:

There are two heat flows in this question.

Heat released by engine + heat absorbed by water = 0

                   q₁                    +                      q₂                = 0

                   q₁                    +                   mCΔT            = 0

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  m = 2.51 kg

  C = 3.41 J°C⁻¹g⁻¹

T_i =   23.8 °C

T_f =205     °C  

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ΔT = 205 °C - 23.8 °C = 181.2 °C

(b) q₂

q₂ = mCΔT = 2510 g × 3.41 J·°C⁻¹g⁻¹ × 181.2 °C = 1.551× 10⁶ J = 1551 kJ

(c) q₁

q₁ + 1551 kJ = 0

q₁ = -1551 kJ

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Which has the lowest freezing point?
Volgvan

Answer:

Mercury has the lowest freezing point for metals, but helium takes the winner for all substances.

Explanation:

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