Spontaneity - Ms. Mogck's Classroom

Spontaneity - Ms. Mogck's Classroom

SPONTANEIT Y SPONTANEOUS REACTIONS SPONTANEOUS REACTIONS OCCURS WITH NO INPUT OF ENERGY SPONTANEOUS REACTIONS ALLOW FOR THE TRANSFER OF ELECTRONS

FROM AN OXIDIZING AGENT TO A REDUCING AGENT TESTING SPONTANEITY HOW COULD YOU TEST SPONTANEITY? PLACE 2 SUBSTANCES IN CONTACT AND SEE IF THEY REACT!

SPONTANEITY RULE IF THE OXIDIZING AGENT IS HIGHER (ON THE SPONTANEITY CHART) THAN THE REDUCING AGENT, THE REACTION WILL BE SPONTANEOUS USES

SPONTANEOUS REACTIONS PRODUCE ENERGY! WHAT COULD WE USE THIS FOR?? LABEL THE OXIDIZING AGENTS FROM STRONGEST TO WEAKEST ACCORDING TO THE CHART A

A+ B+ C+ D+ * * *

B C D * *

* EXAMPLE 2 IN A CHILDRENS CHEMISTRY SET, A COMMON REACTION INVOLVES PLACING IRON SHAVINGS INTO A SOLUTION OF COPPER(II)SULFATE. PREDICT THE SPONTANEITY OF THIS REACTION.

SACRIFICIAL ANODES AKA GALVANIC CATHODIC PROTECTION USED TO PROTECT BURIED OR SUBMERGED METAL STRUCTURES FROM CORROSION SACRIFICIAL ANODES ARE MADE

FROM A MORE ACTIVE METAL AND WILL OXIDIZE IN PLACE OF THE METAL PIPE WHERE WOULD THE SACRIFICIAL ANODE NEED TO BE (ON THE CHART) IN ORDER TO OXIDIZE BEFORE THE METAL PIPE??? EXAMPLE 3

DETERMINE 3 SACRIFICIAL ANODES THAT THE OIL INDUSTRY COULD USE TO REDUCE THE OXIDATION OF IRON IN STEEL PIPES. LIST 1 PRO AND 1 CON FOR EACH METAL USED

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