---

Waiting for your responses...

Answer the following chemistry problem. Report the volume to the nearest gallon of carbonic acid.

How many gallons of 85% carbonic acid must be mixed with how many gallons of 10% carbonic acid to make 670 gallons of a 60% carbonic acid solution?

The number of gallons of 85% carbonic acid needed is gallons.

The number of gallons of 10% carbonic acid needed is gallons.