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Digiron [165]
3 years ago
8

What did antoine lavoisier discover about air​

Chemistry
1 answer:
dedylja [7]3 years ago
3 0

Answer:

He is most well known for discovering the role Oxygen plays in combustion

Explanation:

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The lowest possible concentration of free hydrogen ions is represented by a ph value of
spayn [35]
PH is the logarithmic measure of the concentration of hydrogen ions in solution. In an aqueous system, the lowest possible concentration of H+ ions (least acidic) is 1x 10^-14. The -log(1x10^-14) = pH of 14
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Based on the table, which do you think is larger – your direct water use or your indirect water use?
Pavlova-9 [17]

Answer:

your indirect water use.

5 0
3 years ago
What energy is defined as the energy of motion
Veronika [31]

Answer:

I believe it is kinetic energy

Hope this is right .-.

5 0
3 years ago
Joan needs a 0.053-M solution of HCl, but only has access to 2.12-M HCl, a 10-mL graduated pipet, and a 25-mL volumetric flask.
dmitriy555 [2]

Answer:

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

Explanation:

Molarity of HCl Joan has access to = M_1=2.12 M

Volume of 2.12 M of HCl Joan use = V_1=?

Molarity of HCl Joan desired = M_2=0.053 M

Volume of 0.053 M of HCl Joan can prepare = V_2=25 mL

M_1V_1=M_2V_2

V_1=\frac{M_2V_2}{M_1}

=\frac{0.053 M\times 25 mL}{2.12 M}=0.625 mL

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

6 0
3 years ago
Choose the molecule or compound that exhibits dispersion forces as its strongest intermolecular force. Choose the molecule or co
nadezda [96]

Answer:

O2 - exhibits dispersion forces as its strongest intermolecular force. 

Explanation:

Generally speaking, all biatomic homonuclear molecules, such as N2, O2, F2, do NOT have any dipole moment: the distibution of the nuclear clouds is symmetrical. They are non-polar.

For what concerns heteronuclear molecules, it depends on their geometry.

Dispersion force ( Van der Waal)< dipole dipole < hydrogen bond

Intermolecular forces are forces of attraction between molecules/atoms based mainly on the idea of like charges repel and opposite charges attract.

Based on the polarity of the substance, the type of intermolecular forces existing between substance may be different.

4 0
3 years ago
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