pH is the measure of the concentration of hydrogen ions, which are in fact protons (although it is debatable as to whether they should be considered as hydrogen ions or hydronium ions (H3O+ i.e. a water molecule that has picked up a proton).
It is measured on a logarithmic scale, and pH is defined as -log[H+].
[] indicate concentration.
Logarithm is base 10.
Lower pH actually means higher concentration of protons because of how the function written above works. The concentration is usually written in scientific notation, and the exponent on the 10 is frequently negative. A larger negative exponent (10^-12) is indicative of a smaller concentration than a less negative exponent (10^-3). The negative sign in front of the logarithm makes (most) pH readings positive, and thus the smaller the pH the more H+ ions, and the more acidic.
Alcohol is a substance as with any other drugs legal or illegal.
An element.
Any substance or compound cannot be physically separated. The broad term for this is simply "substance".
White lightning. The gallon jug is preffered.
AnswerNo It is not a pure substance because it contains more than one element.
The weight of a mole depends on the substance you are measuring. The formula is as follows 6.022e23 (Avogadro's number) multiplied by the atomic weight of the element you wish to measure. You can find the atomic weight for any element on the periodic table of elements.
This is an atom.
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Alcohol is a substance as with any other drugs legal or illegal.
yes, Movement of substance down its concentration gradient is a passive transport because it going from high concentration to a low concentration, so it does not require any energy.
Element
An element.
A term used to describe any element or compound is called a substance or substances.
Any element.
A substance that cannot be broken down any further and stays the same substance would be an element
Yes, if it's a pure substance, that is an element or compound, not a mixture.
oxygen or any other element