How many oxygen atoms are there in the product 6Ca+4PO4 --> 2Ca3 (PO4)2?
2 answers:
Explanation:
An oxygen atom is represented by the symbol O. And, the number placed in front of the atom or at the bottom left corner of an atom shows how many atoms are actually present.
For example,
Here, on the reactant side number of Ca atoms are 6, P atoms are 4 and O atoms are 16. On the product side, number of Ca atoms are 6, P atoms are 4 and O atoms are 16.
Thus, we can conclude that the number of oxygen atoms on product side are 16.
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Answer:
rA = 0.60 M/s
rC = 0.90 M/s
Explanation:
Let's consider the following reaction:
2 A+B ⇒ 3 C
The rate of each substance can be calculated like the change in its concentration divided by the change in time. Given the rate must always be positive, we add a minus sign before the reactants change in concentration.
The rate of the reaction is equal to the rate of each substance divided by its stoichiometric coefficient.
The rate of disappearance of B is 0.30 M/s.
The rate of disappearance of A is:
The rate of appearance of C is: