Chapter 1, Problem 1.107E

What is the substance undergoing a chemical or physical change known as?

What is Chemical change

what is the definition of a single replacement

A Classify each example as a physical change or a chemical change.a. crushing an aluminum canb. recycling used aluminum cans to make new aluminum cansc. aluminum combining with oxygen to form aluminum oxide.

A man makes breakfast He puts some toast in the toaster and mixes some eggs with a milk As he begins cooking the eggshe smells the takes the of roaster and puts some butter itwhich meltsFinally, he pours some orange juice through a strainer to remov the pulp. He eats the meal, and he digests it as he drives to work in his car Which option correctly a chemical and a physical change in the scenario A:Burningtoast is a physical change : straining orange juice is a chemical change . B:Burning toast is a chemical change straining orange juice is a physical change C: Digesting food is a chemical change the car burning gas is a physical change D: Digesting food is a physical change the car burning gas is a chemical change .

If a sample of iron and a sample of zinc come into contact, the zinc corrodes but the iron does not. If a sample of iron comes into contact with a sample of copper, the iron corrodes but the copper does not. Explain this phenomenon.

aIs the process of boiling water exothermic or endothermic with respect to the water? bA charged object is moved closer to another object that has the same charge. The energy of the system changes. Is it a change in kinetic energy or potential energy? Is the energy changes an increase or a decrease?

During a very cold winter, the temperature may remain below freezing for extended periods. However, fallen snow can still disappear, even though it cannot melt. This is possible because a solid can vaporize directly, without passing through the liquid state. Is this process (sublimation) a physical or a chemical change?

List four indicators that a chemical change has probably occured.