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rewona [7]
3 years ago
5

Which of the following is the most sensitive and reliable procedure for extracting combustible residues?

Chemistry
2 answers:
Norma-Jean [14]3 years ago
4 0

Answer

B. gas chromatography

Explanation:

NARA [144]3 years ago
3 0

Answer:

gas chromatography

Explanation:

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How many grams of oxygen are produced when 3.0 moles of potassium chlorate decompose completely?
Elena-2011 [213]
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4 0
3 years ago
Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be
svlad2 [7]

D) energy required to remove a valence electron

Explanation:

The ionization energy is the energy required to remove a valence electron from an element.

Different kinds of atoms bind their valence electrons with different amount of energy.

  • To remove the electrons, energy must be supplied to the atom.
  • The amount of energy required to remove the an electron in the valence shell is the ionization energy or ionization potential.
  • The first ionization energy is the energy needed to remove the most loosely bound electron in an atom in the ground state.
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Learn more:

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4 0
3 years ago
Read 2 more answers
One mole of which substance contains a total of 6.02 x 1023 atoms? (I need help please.)
Korolek [52]

Answer:

Oxygen

Explanation:

One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.

8 0
2 years ago
6. If you have a bottle with Helium & Nitrogen at room temperature, how does the speed of the particles compare?
Anon25 [30]
I believe it is C, as helium is one of the lightest noble gases making the particles move faster.
5 0
3 years ago
If the temperature on 244 mL of a gas is changed to 488 mL and 6 atm, at constant
Fittoniya [83]

Answer:

<h2>12 atm</h2>

Explanation:

To find the initial pressure we use the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the initial pressure

P_1 =  \frac{P_2V_2}{V_1}  \\

From the question we have

P_1 =  \frac{488 \times 6}{244}  =  \frac{2928}{244}  \\

We have the final answer as

<h3>12 atm</h3>

Hope this helps you

6 0
3 years ago
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