3.26 g of Iron powder are added to 80.0 cm3 of 0.200 mol dm- copper (IT) sulfate solution. The following reaction occurs:
Fe (8) + CuSO4 (aq) → FeSO4 (aq) + Cu (S)
1a. Determine the limiting reactant showing your working.
1b. The mass of copper obtained experimentally was 0.872 g. Calculate the percentage yield of copper.

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.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

hope this contact me for more questions if you'd like: )