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Masja [62]
3 years ago
13

Which statement best explains the formation and distribution of oil?

Chemistry
1 answer:
liraira [26]3 years ago
7 0
What are the statements?
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Calculate the hydronium ion and hydroxide ion concentrations in human blood at 25oc
sukhopar [10]

Using the equation, pH = − log [H+] , we can solve for [H+] as,

− pH = log [H+] ,

[H+] = 10−pH.

Exponentiate both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of blood with pH 7.4 is,

[H+] = 10−7.4 ≈ 0.0000040 = 4.0 × 10−8 M.

5 0
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A 6 kg rock is sitting at the edge of a 100 m tall cliff. What is the potential energy of the rock with respect to the ground?
Hatshy [7]
Potential energy can be calculated by the formula Pe=mgh. Plug in your values:

Pe=mgh
Pe=(6 kg)(9.8m/s^2)(100 m)
Pe=5880 kg x m^2/s^2, or 5880 Joules
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A decomposition reaction always breaks a compound down into two pure elements. True or False.
skelet666 [1.2K]

False-- most of the time not enough energy is put into the system, so the compounds or whatever cant break down fully into their elements

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3 years ago
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Which group on the periodic table would have zero electronegativity because they have a full octet?
bija089 [108]
The group on the periodic table that would have 0 electronegativity due to the fact that their valence shell is full, i.e, have a full octet would be the inert or noble gases. They have a total of 8 electrons in their valence shell and are thus inert and cannot strongly attract electrons toward itself, from neighbouring atom electrons as it does not need to.
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Which statement describes how chemical formulas like h2o represent compounds
gavmur [86]
H2o stands for water
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3 years ago
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