Asked by Alexis Lowrance on May 31, 2024
Verified
Which of the following is true about tests we can perform on a mineral?
A) a softer mineral will scratch a harder mineral
B) many common minerals react effervesce) with dilute hydrochloric acid
C) a streak plate is used to determine how hard a mineral is
D) many minerals are strongly magnetic
E) none of these
Effervescence
The rapid escape of gas from a liquid in which it is dissolved, often observed as bubbles or fizz.
Streak Plate
A laboratory method used to identify the color of a mineral in powdered form by rubbing it on a porcelain tile.
Magnetic
Pertaining to or exhibiting magnetism; having the ability to attract iron and certain other materials.
- Acquire knowledge of mineral testing procedures and their utilization.
Verified Answer
RD
Russell DubovJun 04, 2024
Final Answer :
E
Explanation :
None of the statements A through D accurately describe tests performed on minerals or their typical properties. A) is incorrect because a harder mineral will scratch a softer one, not the other way around. B) is not true for many minerals; only some, like calcite, react with dilute hydrochloric acid. C) is incorrect because a streak plate is used to determine the color of a mineral's powder, not its hardness. D) is also incorrect as only a few minerals, such as magnetite, are strongly magnetic.
Learning Objectives
- Acquire knowledge of mineral testing procedures and their utilization.