What is an extinct species? *

Chemistry

1 answer:

pentagon [3]3 years ago

8 0

Answer: C

Explanation: I got it right.

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The Electrical conductivity of an aqueous solution depends on the concentration of which particles in the solution

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It depends on the concentration of ions which are responsible for the electrical conductivity in aqueous solutions.

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Which statements describe functions of the backbone? Check all that apply.

Ronch [10]

Answer:

A and E

Explanation:

Backbone is the part of skeletal system and is made of 26 vertebrae in total. The backbone and bones of lower limbs together serve to support the body's weight. Backbone surrounds and protects the spinal cord. Since the vertebrae of backbone are joints together by synovial joints, it allows the flexibility and movement of organisms.

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If the [H+] in a solution is 1 × 10–1 mol/L, what is the [OH–]? Show your work.

AVprozaik [17]

Hello!

The basic equations to solve this is
pH = -log[H+]
pOH = -log[OH-]
pH + pOH = 14
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Find pH

pH = -log(1 * 10^-1)
pH = 1
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Find pOH
1 + pOH = 14

pOH = 13
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Find OH-
[OH-] = 10^(-pOH)
[OH-] = 1 * 10^-13mo/L

The answer is $[OH-] = 1 * 10^{-13} mol/L$

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Answer:

It takes two hydrogen atoms for every oxygen atom to produce this reaction, so the mole ratio between hydrogen and oxygen is 2:1. The reaction produces two water molecules, so the mole ratio between oxygen and water is 1:2, but the mole ratio between water and hydrogen is 2:2.

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