The overall rate of a reaction between two species doules when:

Explanation:

The overall rate of a reaction between two species doubles when: the order of both species changes or any of the species changes.

The overall order of the reaction is found by adding up the individual orders. For example, if the reaction is first order with respect to both A and B (a = 1 and b = 1), the overall order is 2. Therefore overall order is 2 or second order reaction although order of individual species is 1.

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acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

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shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.