Answer:
Aerobic exercise became part of this movement in the 1970s.
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Knowing that the a and b represents red and blue spheres respectively.The chemical equation we could make isL5A2 + 5B --> 4A2B + A2 + B as shown in boxes
Simplifying this would make it:
4A2 + 4B --> 4A2B
Thus, reducing the coefficients, the final answer is:
A2 + B --> A2B