Zn + HNO3 ------------>Zn(NO3)2 + NO2 + H2O || Shashaank Blogspot

In this video we will balance the equation HNO3 + Zn = Zn(NO3)2 + H2 and provide the correct coefficients for each compound. To balance HNO3 + Zn = Zn(NO3)2 + H2 you will need to be sure to count all of atoms on each side of the chemical equation. Once you know how many of each type of atom you can only change the coefficients (the numbers in front of atoms or compounds) to balance the equation for Nitric acid + Zinc . Important tips for balancing chemical equations: Only change the numbers in front of compounds (the coefficients). Never change the numbers after atoms (the subscripts). The number of each atom on both sides of the equation must be the same for the equation to be balanced.

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Shatakshi sinha said…

nice bro

July 17, 2021 at 1:57 PM

How to add password in PDF Files 📂|| EnergeticTech

Histogram || Shashaank Blogspot

Histogram A histogram is what we call an area diagram. It indicates the frequency of a class interval. The class interval or the range of values is known as bins or classes with reference to histograms. A bar indicates the number of data points within a specific class. That means the higher the frequency of a particular class, higher the bar. Let us see an example of a Histogram. From the below-given table of the various heights of trees in a region, we will draw a histogram to illustrate how it is done. Let us look at the frequency table now. Height of Trees (ft) No. of trees 60-65 3 65-70 3 70-75 8 75-80 10 80-85 5 85-90 2 Now here the heights of the tree are continuous data. These class intervals are the bins. And the number of trees are obviously the frequency. And now let us draw a histogram (given below) that represents the above data. Histograms vs Bar Charts In bar graphs, each bar represents one value or category. On the other hand in a histogram...

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