The physical state of matter can help us know which of these substances will be the most dense. Density deals the amount of substances per unit volume.
Solids are packed closely and have a definite and ordered arrangement of their atoms. From the list above only Silver is a solid at room temperature.
Bromine is a liquid at room temperature while chlorine and oxygen are gases at room temperature. Liquids and gases do not have more substances per unit volume compared to solids. Therefore, silver should be the most dense.
pH is a measure of the hydorgen ion concentration of a solution. Solutions with a high concentration of hydrogen ions have a low pH and solutions with a low concentrations of H+ ions have a high pH.
<em><u>[H+] and [OH-] are inversely related. Therefore; As the concentration of H+ increases the pH decreases. Since the concentrations of H+ and OH- are inversely proportional, as one goes up, the other goes down. </u></em>
<em><u>Therefore, an increase in OH- concentration will correspond to an increase in pH and a decrease in the concentration of H+.</u></em>
Producers make food for the rest of the ecosystem through the process of photosynthesis, where the energy of the sun is used to convert carbon dioxide and water into glucose.
