Water at different temperatures has different densities. Water at 4°C, is the densest and so it is heavier by volume than water at lower or higher temperatures. However, when water is mixed, the temperature will become the average of the two water temperatures. This means that you can't see one floating on the other - even if you coloured one of the water temperatures, it would mix almost immediately.
Something else to consider is that water is not as homogenous as most people think. Naturally occuring water contains deuterium oxide, 17O and 18O isotope water, and tritiated water are forms of heavy water.
It is lower.
Water boils at lower temperatures at higher altitudes because the atmospheric pressure is lower. In a valley, the air pressure is greater, which allows water to reach a higher temperature before boiling. At higher altitudes, where the air pressure is lower, the boiling point of water decreases.
A lower acid value indicates lower levels of free fatty acids in a substance, which can result in better quality and stability. Higher acid values can lead to rancidity, off-flavors, and reduced shelf life in products like oils and fats.
No. The concentration of and acid and the strength of an acid are two unrelated values. The strength of an acid is the degree to which it will break apart into ions when dissolved in water. It is an inherent property of any given acid. The concentration of an acid is how much of it is present in proportion to its solvent (usually water) and is independent of any properties of the acid itself. You can take a solution of some acid and add it to water to lower the concentration or boil off some water to raise the concentration, but the properties of the acid itself remain the same.
Neutral pH is 7. pH is minus the log of the hydrogen ion concentration. And hydrogen ions are delivered by acids (definition of an acid) and suppress the concentration of OH ions. So acid rain has a pH of less than ("normal") 7.
Yes, a 20 percent NEFE acid solution is heavier than a 2 percent KCL water solution because the density of NEFE acid is higher than that of KCL water. The higher concentration of NEFE acid contributes to its increased weight compared to the lower concentration of KCL in water.
Soap is usually caustic not acid. Higher than ph7, not lower.
No, citric acid is not heavier than water. The density of citric acid is lower than that of water, so citric acid will float on the surface of water.
An "acid" is a chemical that has a PH lower than 7.0 and a "base" is a chemical that has a PH higher than 7.0. It would be impossible for a chemical to have a PH both lower and higher than 7.0 at the same time. Pure water has a PH of exactly 7.0 and is therefore neither an acid nor a base.
Saliva has a higher pH (around 6.5 to 7.5) than stomach acid, which typically has a pH of 1.5 to 3.5.
A solution with a pH lower than that of distilled water would be acidic. This could be achieved by adding an acid such as hydrochloric acid or sulfuric acid to water. Acidic solutions have a pH below 7, with the lower the pH, the more acidic the solution will be.
i think a strong acid ionizes completely in water while a weak acid ionizes partiallly in water therefore the pH of a strong acid is greater than that of a weak acid The first part of your answer was correct, but the second was reversed. The pH of a strong acid is lower than the pH of a weak acid.
A basic pH is higher than an acidic or neutral pH.
Lactic acid has a higher potential energy than water. This is because lactic acid contains chemical bonds that store more energy compared to the bonds in water.
Yes, the pH of a 25% acetic acid solution is higher than that of a 0.25M hydrochloric acid solution. Acetic acid is a weak acid, so its pH will be higher compared to hydrochloric acid, which is a strong acid.
Soaps are made from animal fats and their fatty acids.Soap is usually caustic not acid. Higher than ph7, not lower.
It is lower.