Consider the following data for five hypothetical elements: Q, W, X, Y, and Z. Rank the elements from most reactive to least rea
ctive. Combination Observation of reaction
Q+W+ Reaction occurs
X+Z+ No reaction
W+Z+ Reaction occurs
Q++Y Reaction occurs
Place the element symbols from most to least reactive. To rank items as equivalent, overlap them.
The most reactive element is the element that will displace an element from it compound . The most reactive element will replace the less reactive element in it compound.
Q+ + Y Reaction occurs
Since the reaction occurs the element Y which is more reactive displaced element Q from it compound.
Q+W+ Reaction occurs
The reaction occurs, that means element Q replaces element w from it compound. Element Q is therefore more reactive than element W.
W+Z+ Reaction occurs
The reaction also occurs . This is an indication that element W replaces element Z in it compound. This means element W is very reactive than element Z.
X+Z+ No reaction
There is no reaction here. This is an indication that element X is less reactive than element Z. This is why element X can't displace element Y in it compound.
chemical changes that happen when food goes bad. All food will eventually rot if not eaten, but keeping the food cold slows the rotting process. Chemical changes are affected by temperature. More heat or energy (a higher temperature) usually allows for faster chemical changes.
