What is natural radioactivity give example?

What is natural radioactivity give example?

The phenomenon of spontaneous and continuous and uncontrollable disintegration of an unstable nucleus accompanied by the emission of active radiations is called natural radioactivity. The substance which exhibits radioactivity is called a radioactive substance. e.g. Uranium, thorium, radium, etc.

What is the pH value of alkaline?

The pH scale ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

How does pH differ from acidity or alkalinity?

As this diagram shows, pH ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic). The pH scale ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

What is difference between acidity and alkalinity?

Acidity is a measure of a solution’s capacity to react with a strong base (usually sodium hydroxide, NaOH) to a predetermined pH value. Alkalinity is the measure of a solution’s capacity to react with a strong acid (usually sulfuric acid H2SO4) to a predetermined pH.

Is alkaline acidic?

A pH of 0 is totally acidic, while a pH of 14 is completely alkaline. A pH of 7 is neutral. Those levels vary throughout your body.

What is acid alkaline and neutral?

pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic). The pH scale ranges from 0 to 14, with 7 being neutral. pHs less than 7 are acidic while pHs greater than 7 are alkaline (basic).

What has neutral pH?

Pure water is neutral. It is neither acidic nor basic, and has a pH of 7.0.

What is the range of pH of neutral and acid?

The terms “acid,” “alkaline,” and “neutral” refer to positions on a scale of pH ranging from 1 to 14. (Actually, a solution can have a pH below 1 and above 14, but this range is most commonly used.) A pH of 7 is neutral. Numbers below that are in the acid range, and those above indicate an alkaline solution.

What’s the difference between acid and neutral cleaning?

Some understanding of cleaning technology will at least lead to a more informed choice. The terms “acid,” “alkaline,” and “neutral” refer to positions on a scale of pH ranging from 1 to 14. (Actually, a solution can have a pH below 1 and above 14, but this range is most commonly used.) A pH of 7 is neutral.

Is soil acidic or alkaline below pH 7?

Any value below 7 means the H+ ion concentration is greater than at neutral pH and the solution is acidic. Soils are considered acidic below a pH of 5, and very acidic below a pH of 4.

What type of soil is most likely to react with alkalinity?

Grease- and oil-based soils are responsive to high alkalinity, and are often encountered on evaporator and other internal air handler surfaces. The oils come from human and animal skin flakes, cooking, and other inside sources. Particulates, smoke, and other environmental soils tend to be responsive to acid solutions.