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3 years ago

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?

iren [92.7K]

B) The frequency of the emitted light is directly proportional to the energy given off by the electrons.

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4 years ago

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PLS AWNSER ASAP<br><br> Name a location where divergent boundaries occur.

Levart [38]

Answer:Divergent boundaries are typified in the oceanic lithosphere by the rifts of the oceanic ridge system, including the Mid-Atlantic Ridge and the East Pacific Rise, and in the continental lithosphere by rift valleys such as the famous East African Great Rift Valley.

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3 years ago

A chemical_____is a written method of representing the

Lilit [14]

Answer: compound

Explanation:

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3 years ago

What is the first step in the process of scientific inquiry?

True [87]

Answer:

Option C: Observation

Explanation:

The first and foremost step in the process of scientific inquiry is observation. Because, until there is no observation there are no questions to Ask. Having high quality observation is too much valuable in scientific process.

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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]

Answer:

4.8 grams

Explanation:

Use PV=nRT

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

V: 3700 mL (divide by 1000 to get L) -> 3.7L

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