process writing

Write completely balanced ionic equation, showing all species in their correct state. This requires knowledge of whether or not a substance in a weak electrolyte or a non electrolyte. Cancel any species that is same on both the sides of the equation. Rewrite the equation showing o..

Method of writing expansion for (a+b) n The first term in the expansion of (a + b) n is n C 0 a n b 0 . For the second term, the coefficient is taken as n C 1 , the power of 'a' is decreased by one and the power of 'b' is increased by one. So, the second term is n C 1 a n - 1 b..

Question: Write a short note on the fertility of soil. Answer: The capacity of the soil to sustain the plant life with required nutrients is called the fertility of the soil. The fertility of soil reduces mainly due to soil erosion. When a crop is grown on the same land repeat..

Introduction - Friction - Friction is unavoidable in our day-to-day lives. Man keeps trying so many techniques to reduce friction in any process, but he also realises that without friction none of his work would have been possible. Life would have been impossible without the aid of fricti..

Then term 'Xerography'; the use of Photoelectric phenomena to transfer an image from one sheet of paper to another comes from the Greek words for "dry" and "writing". Dry copying is based on the principle that materials with opposite electrical charges attract one another and that some ma..

Working rules for expanding (a + b) n n N: Step 1: The value of index, n implies that there will be n+1 terms in the expansion of (a + b) n . Step 2: Write the first term: n C 0 a n b 0 . Step 3: For the second term, take coefficient as n C 1 , decrea..

Unit Circle - The circle whose radius is 1 unit whose centre is the origin of a rectangular co-ordinate system is called the unit circle. Let q be any real number. Begin at A(1, 0) on the unit circle and measure along the circumference of arc length |l| units. If q > 0 measure the arc in the ant..

The history of the fax machine begins in 1843 in England with Alexander Bain. He devised an apparatus made up of two pens connected to two pendulums. He joined the two together with a wire, and was able to reproduce writing onto an electrically conductive surface. Some years later, in 18..

Nuclear energy is released when very small particles of matter split or combine. After the split or combination, they result in small particles or heavy particle. The rest of the mass is changed into energy. This process of changing mass into energy produces the energy. Energy can also ..