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3 years ago

Which species has the smaller bond angle, h3o+ or h2o?

1 answer:

7 0

To answer this question,you have to know the molecular geometry of the compound. The molecular geometry is empirical for certain compounds. For H₂O, the bond angle is 109.5°. On the other hand, the bond angle for H₃O⁺ is between 104.5° and 109.5°. <em>So, the smaller bond angle would be H₃O⁺</em>.

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Which energy transformation occurs after a sky diver reaches terminal velocity

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Gravitational potential energy transforms into thermal energy.

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3 years ago

Fill in the blanks to complete each statement about the heating of Earth's surface

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3 years ago

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Why is Nertic zone particularly rich in living things?

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3 years ago

What volume of CH4(g), measured at 25oC and 745 Torr, must be burned in excess oxygen to release 1.00 x 106 kJ of heat to the su

anastassius [24]

Answer:

$V=27992L=28.00m^3$

Explanation:

Hello,

In this case, the combustion of methane is shown below:

$CH_4+2O_2\rightarrow CO_2+2H_2O$

And has a heat of combustion of −890.8 kJ/mol, for which the burnt moles are:

$n_{CH_4}=\frac{-1.00x10^6kJ}{-890.8kJ/mol}= 1122.6molCH_4$

Whereas is consider the total released heat to the surroundings (negative as it is exiting heat) and the aforementioned heat of combustion. Then, by using the ideal gas equation, we are able to compute the volume at 25 °C (298K) and 745 torr (0.98 atm) that must be measured:

$PV=nRT\\\\V=\frac{nRT}{P}=\frac{1122.6mol*0.082\frac{atm*L}{mol*K}*298K}{0.98atm}\\\\V=27992L=28.00m^3$

Best regards.

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4 years ago

Please help im really stressed and doing 2 tests at the same time

DanielleElmas [232]

The answer is A, good luck

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3 years ago

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