Yes layers of sediment form at the bottom of the ocean.
The answer is zero also I suggest googling the questions there is a quizlet with the answers
Electrons are orbiting the nucleus in the fxed way paths located in solid sphere
In the equation given above, there is conservation of MASS, CHARGE AND ENERGY.
These three parameters are usually conserved during the course of chemical reactions. When any of these parameter experience a reduction during the course of chemical reaction, such loss is always gained by other elements involved in the same reaction, so that at the end of the day, they are not considered as lost.