Balance the following equation by inspection:
cu + hno3 --> cu(no3)2 + h2o +no

3Cu + → 3 +4 + 2NO

Explanation:

Considering the number of each atom in both reactants, it must be equal to the number of each atom in the product. Thus, the number of copper atom, hydrogen atom, nitrogen atom and oxygen atom must be equal on both sides of the equation.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

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