3 years ago

Which pair of elements is most likely to form an ionic bond?

Chemistry

1 answer:

Sphinxa [80]3 years ago

7 0

C.
Ionic bonds are formed between metal atoms, potassium in this case, and non-metal atoms, iodine in this case.

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Given a block of wood 2 cm long, 4 cm wide, and 3 cm high, determine its volume. You may work on a separate piece of paper. 11 c

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24cm3

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with the help of balanced chemical equation explain what happens when zinc is put in dilute hydrochloric acid

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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:

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

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