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navik [9.2K]
3 years ago
11

Liquids tend to contract when heated. please select the best answer from the choices provided

Chemistry
2 answers:
pshichka [43]3 years ago
8 0
This statement is false. Everything expands when heated
likoan [24]3 years ago
7 0
B.False Reasoning for this is because when liquids are heated they tend to expand more, which then either turns into gas, or a solid when heated.
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The combustion of propane may be described by the chemical equation C 3 H 8 ( g ) + 5 O 2 ( g ) ⟶ 3 CO 2 ( g ) + 4 H 2 O ( g ) C
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Answer: 72 grams of O_2(g) are needed to completely burn 19.7 g C_3H_8(g)

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According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the number of moles, we use the equation:

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72 grams of O_2(g) are needed to completely burn 19.7 g C_3H_8(g)

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