Answer:
Their answers must be in two decimal places
The molecular formula shows the exact number of molecules. Therefor, the empirical formula is the simplest formula of the molecular formula
KauCl4 :
K = + 1
au = + 7
Cl = - 2
hope this helps!
Answer:

Explanation:
Hello there!
In this case, since these problems about gas mixtures are based off Dalton's law in terms of mole fraction, partial pressure and total pressure, we can write the following for hydrogen, we are given its partial pressure:

And can be solved for the total pressure as follows:

However, we first calculate the mole fraction of hydrogen by subtracting that of nitrogen to 1 due to:

Then, we can plug in to obtain the total pressure:

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Answer: B is a gas because its volume is less than the volume of the containers.
Explanation: hope this help bye