A solute that dissociates to release hydrogen ions and causes a decrease in pH is an acid. To be more specific it is an Arrhenius acid and a Bronsted Lowry acid.
Hydrochloric Acid or HCl is a strong acid. This is because it dissociates completely in water (the very definition of a strong acid/base) into H+ and Cl-. Since H+ are free in the water it causes the water to become more acidic and therefore an acid. The dissociation coupled with the free H+ after dissociation give it the classification of a strong acid.
HCI is the chemical formula for Hydrochloric acid. HCI is composed of a hydrogen ion and a chloride ion. The hydrogen ion causes HCI to become an acid.
The concentration of the reactants decreases.
Yes, hydrogen is lighter than air and so causes the balloon to float.
The enzyme catalase causes the decomposition of water into hydrogen and oxygen inside cells.
acid
Clonidine is an alpha-2 adenergic agonist. This means that it stimulates the alpha-2 receptor. This causes a decreased release of norepinephrine and epinephrine. This decrease causes a decrease sympathetic tone acting like a sedative.
an increase in volume and/or a decrease in mass
Adding water does not always decrease pH. pH is a measure of the concentration of hydrogen ions, also called hydronium ions. They are inversely related. More hydrogen ions means a lower pH. A base has a pH greater than 7 (neutral) because it has an increased amount of hydroxide ions which causes a lower amount of hydrogen ions. Adding more water to a base solution causes the concentration of the hydroxide ions to become less, thus due to equilibrium, causing the hydrogen ion concentration to increase. This does cause pH to become less ... decrease. But an acid solution does the exact opposite when water is added. It already has a large concentration of hydrogen ions, but as water is added the concentration decreases and this causes pH to increase.
This involves "nuclear fusion" reactions.
Hydrogen bonds are formed between water and ethanol molecules, the solution become more "packed"; the density increase and the volume decrease.
the parathyroid hormone (PTH) is released by the parathyroid gland (located behind the thyroid gland). A decrease in blood calcium causes the parathyroid gland to secrete PTH which causes the bones to release more calcium to raise blood calcium and also causes the kidneys to decrease the amount of calcium lost in urine
no
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theft
Deforestation.