Physical properties refer to properties that can be measured without changing the identity and composition of the substance.
Meanwhile, chemical properties refer to properties that describe the way a substance may change or react, to form other substances.
Read the following descriptions of the element zinc and indicate which are physical properties and which are chemical properties.
Zinc melts at 420 °C.
When zinc granules are added to dilute sulfuric acid, hydrogen is given off and the metal dissolves.
Zinc has a hardness on the Mohs scale of 2.5 and a density of 7.13 g/cm3 at 25 °C.
It reacts slowly with oxygen gas at elevated temperatures to form zinc oxide, ZnO.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Physical & Chemical Properties concept. If you need more Physical & Chemical Properties practice, you can also practice Physical & Chemical Properties practice problems.