A model that places earth in the center and has the sun, planets, and other objects orbiting the earth.
Explanation:
The geocentric model is a model that places earth in the center and has the sun, planets and other objects orbiting the earth.
- Based on the geocentric model of the earth, other planetary bodies revolves round the earth.
- The heliocentric model is a stark contrast of the geocentric model.
- In the heliocentric model, the sun is at the center of the solar system.
- This model is now known to be correct.
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When a solid is heated , the average kinetic e energy of the substance increases because of which the temperature increases....this heat won’t affect the average kinetic energy of the substance. Since average kinetic energy will remain same during phase change , the temperature will remain same too.
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D, obviously. All living things are made of one or more cells, therefore non-living things aren’t made of cells
The one created by mandeleev is not in order of increasing the atomic number
Answer:
The pH of the solution is 1.34, being an acidic pH.
Explanation:
pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
The acronym pH stands for hydrogen potential.
The pH scale ranges from 0 to 14. Values less than 7 indicate the acidity range and those greater than 7 indicate alkalinity or basicity. Value 7 is considered neutral. Mathematically, pH is the negative logarithm of the molar concentration of hydrogen or proton ions (H⁺) or hydronium ions (H₃O⁺).
pH= - log [H⁺] = - log [H₃O⁺]
In this case, [H⁺]= 4.6*10⁻² M. Replacing:
pH= - log 4.6*10⁻²
Solving:
pH= 1.34
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The pH of the solution is 1.34, being an acidic pH.</em></u>
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