unicorngirl732 unicorngirl732

11-12-2020
Chemistry

contestada

____ is a gemstone used in clocks and watches.

A. Carbon
B. Chalcopyrite
C. Quartz
D. Corundum
E. Galena

Respuesta :

miagaeta30 miagaeta30

11-12-2020

Answer: C

Explanation:

Clocks and watches are made out of Quartz

Answer Link

Otras preguntas

What do the properties of polynomial addition mean? Complete each statement. The closure property states that the sum of two polynomials is a . The commutativ

Si un ángulo de un rombo mide 39 grados , ¿ cuánto miden los demás ?

What is the approximate wavelength of a light whose first-order bright band forms a diffraction angle of 45.0° when it passes

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? A. Magnesium has a 2+ oxidation number and chlorine has a 1

What type of accessory device can be used to measure AC current with a VOM without opening the circuit? A. Split inductor B. Amp clamp C. Isolati

Why can 6-aminohexanoic acid undergo a polymerization reaction with itself?

What theory is believed how the Native Americans came to the Americas?

Bed-wetting in children is discouraged by creating an uncomfortable reaction. Each time the child has an incident an alarm sounds. This scenario demonstrates

If mitotic cell division is the only way a particular species of single-celled organism can reproduce, it is most likely that

If "quercus" is the genus name and "rubrus" is the species name for a red oak tree, which is the most correct written form of the red oak tree's scientific name