when you turn up the thermostat on your furnace several things happen. Which of these would be considered a chemical property of matter?

Fuel can burn in the furnace.

Fuel can burn in the furnace.

To identify which of the mentioned changes are considered chemical properties, we need to understand the difference between chemical and physical properties of matter.

Chemical properties describe how a substance can undergo a change or react with other substances, resulting in the formation of new substances. These properties involve a transformation at the molecular level.

Physical properties, on the other hand, describe the characteristics of a substance that can be observed or measured without any alteration in its chemical composition.

Now, let's consider the given scenario of turning up the thermostat on a furnace. Several things may happen, such as:

1. Increase in temperature: This is a physical property as it only affects the kinetic energy of particles without causing any chemical changes.

2. Expansion of gases or liquids: This is also a physical property as it deals with changes in volume caused by thermal expansion but does not involve any chemical reactions.

3. Combustion: If turning up the thermostat causes the fuel to burn, it involves a chemical reaction. Combustion is a chemical property as it involves the reaction of a substance with oxygen to produce heat and new substances.

From the given options, combustion is the only change that can be considered a chemical property of matter.

None of the above.