[OH⁻] = 1.6 × 10⁻⁸ mol / dm³
<h3>Explanation</h3>
By definition, , where is the concentration of proton in the solution.
pH = 6.2 for this solution. As a result, .
, where the concentration of hydroxide ions and is the dissociation constant of water.
at 0.10 MPa and 25 °C. As a result, .
Answer:
It will take the police car 3.5 hours to travel a distance of 175 miles traveling at a rate of 50 miles/hour.
Explanation:
You're oxidising agent will be reduced. In the molecule MnO4-, Mn has and oxidation number of +9 and in MnO2 it is +4, therefore its oxidation number has reduced, therefore Mn is reduced, therefore it is the oxidant/oxidising agent.
The model shown is a ball and stick model of a water molecule showing atomic structure of a water molecule consisting of two atoms of hydrogen bonded to an oxygen atom.
<h3>What are models?</h3>
Models are representations in the form of diagrams, pictures, or illustration of concepts, ideas, or structures of other objects.
In science, models are used to represent molecules and atoms of substances.
Some common models used in chemistry to represent the molecules of substances are:
- ball and stick model
- space-filling models
The model shown is a ball and stick model of a water molecule.
The atomic structure of a water molecule consists of two atoms of hydrogen bonded to an oxygen atom.
In conclusion, models are used to represent the structure of other substances or concepts.
Learn more about ball and stick model at: brainly.com/question/4300427
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the answer is D
Because x can equal any number divided by 2 +1