name last meanings

The trivial names are the commonly used names of carbon compounds. They are derived mostly from the source of the compound e.g., the name of formic acid is derived from 'formicus' the Greek word meaning red ants. Names arrived in this way were ambi..

Selenium (Se) - 'Seles' Greek name for the moon Plutonium (Pu) - Neptunium (Np) Uranium (U) Mercury was named after a planet but derives its symbol Hg from the Latin word 'Hydragyrum' meaning liquid silve..

Forces..

Time taken by each worker to complete a piece of work is recorded here. Find the mean time. Name Time (in hours) John 44 David 38 Mike 42 Stephen 39 Joseph 36 Steve 41 => 40 hours or 1440 hours or 240 hours or 44 hours..

The following table shows the heights of mountains in the U.S. Choose the appropriate box-and-whisker plot of the data and find the mean height of the mountains. Name Height (in hundred ft.) Mt. McKinley 200 Mt. St. Elias 180 Mt. Foraker 175 Mt. Bona 165 Mt. Blackburn 160 Mt. Al..

The approximate height (in hundred feet) of mountains in U.S are shown in the table. Choose the appropriate box-and-whisker plot for the data and find the mean height of the mountains in U.S. Name Height (in hundred ft.) Mt. McKinley 200 Mt. St. Elias 180 Mt. Foraker 175 Mt. Bon..

The scores shown below were received by four science teams named A, B, C, and D in an examination. Each team reported an "average" of 90. Which of the following is true for the measure of central tendency that was used by the team? A: 80, 85, 90, 95, 100 B: 93, 92, 90, 90, 91 C: 80, 86, 9..

The credit of discovery of first noble gas argon goes to Henry Cavendish who performed number of experiments to study the composition of air. He found that air is approximately 79 per cent nitrogen and 21 per cent oxygen by volume. Traces of carbon dioxide and water vapor were thought to account f..

Hydrogen is the first element in the periodic table and is the lightest known element. It was discovered by Henry Cavendish in 1766. It exists as a diatomic molecule H 2 . Its name hydrogen was proposed because it produces water on burning with oxygen (in Greek; hydro means wate..

Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by ..