Which properties require a tool?
a. cleavage
b. luster
c. carbohydrate content
d. hardness
The properties that require a tool are cleavage and hardness.
which properties do NOT require a tool?
a. hardness
b. carbonate content
c. cleavage
d. luster
The properties that do NOT require a tool are carbonate content and luster.
To determine which properties require a tool, we need to analyze each property and see if it can be observed or measured directly using tools. Let's go through each property mentioned:
a. Cleavage: Cleavage refers to how a mineral breaks along planes of weakness. To determine cleavage, you can use a tool called a cleavage test, which involves using a sharp object to try to split the mineral along its planes of weakness.
b. Luster: Luster refers to the way light reflects off the surface of a mineral. It can be observed directly without the need for any tools. You can simply look at the mineral and determine its luster by examining how it reflects light.
c. Carbohydrate content: Carbohydrate content is not a property that can be determined using tools. It requires chemical analysis techniques, such as laboratory tests and techniques like chromatography, to measure the carbohydrate content of a substance.
d. Hardness: Hardness refers to the ability of a material to resist scratching. To measure hardness, you need a tool called a hardness test kit. The most commonly used kit is the Mohs scale kit, which contains several minerals with known hardness values. By observing whether the mineral scratches or is scratched by the minerals in the test kit, you can determine its hardness.
So, to answer the question, the properties that require a tool are cleavage and hardness (options a and d).