Para and ortho is actually indicating different name structure of mixture. So if structure is different then boiling/distill/melt temprature will be also different.
The population density is 47 people/km^2..
<em>Step 1</em>. Calculate the <em>surface area of Earth</em>.
<em>d</em> = 12 700 km; <em>r</em> = 6350 km
<em>A</em> = 4π<em>r</em>^2 = 4π × (6350 km)^2 = 5.067 × 10^8 km^2
<em>Step 2</em>. Calculate the <em>habitable surface area</em>.
Habitable area = 5.067 × 10^8 km^2 total × (30 km^2 habitable/100 km^2 total) = 1.520 × 10^8 km^2 habitable
<em>Step 3</em>. Calculate the <em>population density
</em>
Population density = 7.1 × 10^9 people/1.520 × 10^8 km^2 = 47 people/km^2
If it produces heat then it would classify as a chemical change. Some other options are if it produces smell. Texure, matter of the material,and if it changes color are all also apart of classifying a chemical change.
Solubility is the amount of solute that can dissolve in a given solvent at a specified temperature or pressure. Therefore, solubility is affected by pressure and temperature such that increase in temperature increases the rate of solubility of substances. In additional solubility depends on the molecular size of the solute such that when other factors are kept constant then a solute with small particles will dissolve more faster. Therefore, to increase the rate of solubility Ryan may; increase the temperature of water.
