3 years ago

How many electrons does Oravetium contain

Chemistry

1 answer:

olga nikolaevna [1]3 years ago

5 0

i’m pretty sure 5 valence electrons

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For the following example, list the given and unknown information (including gratis or moles)

Setler79 [48]

Answer:

9.6 moles O2

Explanation:

I'll assume it is 345 grams, not gratis, of water. Hydrogen's molar mass is 1.01, not 101.

The molar mass of water is 18.0 grams/mole.

Therefore: (345g)/(18.0 g/mole) = 19.17 or 19.2 moles water (3 sig figs).

The balanced equation states that: 2H20 ⇒ 2H2 +02

It promises that we'll get 1 mole of oxygen for every 2 moles of H2O, a molar ratio of 1/2.

get (1 mole O2/2 moles H2O)*(19.2 moles H2O) or 9.6 moles O2

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3 years ago

Which element contains the same number of energy levels as oxygen?

natima [27]

Answer: this question is 3 days ago? Omg

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3 years ago

Calculate the molarity of a salt solution with a volume of 0.250L that contains 0.70 mol of NaCl. (SHOW WORK)

Kazeer [188]

Answer:

= 0.28M

Explanation:

data:

volume = 0.250 L

= 0.250dm^3 ( 1litre = 1dm^3)

moles = 0.70 moles

Solution:

molarity = $\frac{no. of moles}{volume in dm^3}$

= 0.70 / 0.250

molarity = 0.28 M

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2 years ago

HELP! Which atom would be neutral?

stealth61 [152]

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an oxygen atom with 8 electrons, 8 protons and 9 neutrons

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List one extensive and intensive property of marker ink

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Do you know the difference between an extensive property verses an intensive property?

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