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Marta_Voda [28]
3 years ago
11

Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.

Chemistry
2 answers:
Liula [17]3 years ago
4 0
I’m pretty sure the answer is Barium. I hope it helps.
Sedaia [141]3 years ago
4 0
If I’m not Mistaken I think it’s magnesium the farthest up and right

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Which of the following statements is true about Planck's Law?
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B) The frequency of the emitted light is directly proportional to the energy given off by the electrons. 

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A chemical_____is a written method of representing the
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What is the first step in the process of scientific inquiry?
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Option C: Observation

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3 years ago
How many grams of O2 gas are in a 3700 mL container at a pressure of 775 mmHg at 33oC?
Zina [86]

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Use PV=nRT

P: 775 mmHg (divide by 760 mmHg to get atm)  -> 1.02 atm

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n: ?

R: (a constant) 0.0821L * atm/k *mol

T: 33 C (add 273 to get K)  -> 306K

Move equation so n is on the side: PV/RT = n. Plug the numbers into the equation.

\frac{1.02atm * 3.7L }{306K} * \frac{K * mol}{0.0821L *atm} = 0.15 mol

Then, convert moles to grams using the molar mass of O2 which is 32g/mol.

0.15 mol * \frac{32g}{mol}= 4.8g

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2 years ago
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