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A substance that increases the concentration of hydroxide ions in solution (OH-), is referred to as an Arrhenius base.
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What substance has and equal number of hydrogen ions as hydroxide ions?
Neutral, pH=7.0 by using:[H+]*[OH-] = Kw = 1.0*10-14and [H+]= [OH-]you will resolve this to [H+]= [OH-] = 10-7 and so pH = pOH = 7.0
What happens to the number of electrons in an atom when the atomic number increases?
The atomic number is specific to the element itself - not the quantity. It does not change as you add in more of the element.
What has a high concentration of hydroxide ions?
Any solution that has a pH level higher then seven is going to contain the higher concentrations of hydroxide. The gastric acid located in the stomach has very high concentrations of hydroxide.
As you travel down a group the do atomic size increases or decreases?
it increases: for the atomic number indicates the number of protons and neutrons in the atom; these are the weight carrying particles
Is an element a substance that increase OH- when added to H2O?
No. The more reactive metals do displace hydrogen. Bases are substances that when adde to water increase the concentration of OH-
What is s typical basic substance is one that increases what following ion in solution?
A hydroxide (as NaOH) release the ion OH- in water.
What makes pH go up and down?
pH tells us the hydrogen ion (H+) ion concentration. The lower the number - the greater the number of hydrogen ions. Adding hydrogen ions decreases pH (and increases acidity) removing them (eg by adding hydroxide OH-) increases pH.
When a substance is undergoing oxidation does the oxidation number increase?
Yes, during oxidation, the oxidation number of the substance increases. This is because oxidation involves the loss of electrons, leading to an increase in the oxidation number.
What happens when a base dissolve?
It increases the concentration of OH - in a solution.
When a substance melts The temperature of the substance increases?
it decreases.
How does the concentration of OH- ions change if its pH changes from 8 to 13?
As pH increases H+ ions concentration decreases means OH- ions concentration increases . If pH increases from 8 to 13 , OH- ions concentration increases.
What happends to the OH- as the H plus increases?
The concentration of OH- decreases as the concentration of H+ increases. This is beacause there is an equilibrium H2O <-> H+ + OH- and therefore the [H+][OH-] is a constant
What the meaning of the oxidation?
Oxidation has three main meanings in science, 1) An substance gaining oxygen 2) A substance loses electrons 3) A substance increases in oxidation number (ox. State)
What substance increases the number of H3O plus when dissolved in water?
Amy of the seven strong acids such as HCl and HBr
What happes to particles in a substance when the substance's temperature increases?
As temperature increases in a substance, the component particles become more energetic and eventually a phase change occurs.
As the density of a substance increases the volume of a given mass of that substance .?
Decreases
Is water an example of substance?
Oh yes, water is a substance.
