109090i 109090i

27-09-2020
Chemistry

contestada

What is used to test for the presence or absence of a certain substance?

Respuesta :

GeorgePP GeorgePP

27-09-2020

Answer:

Explanation:

I would say a mass spectrometer. Not entirely sure on that tho

Answer Link

Otras preguntas

solve the problem. use 3.14 for pie, and round your answer to the nearest tenth. the foundation for a cylindrical flower bed is a cylinder 17 feet in diameter a

Find the surface area of the prism. A. 24 m2 B. 54 m2 C. 94 m2 D. 104 m2

A recent study of 200 nurses found that of 125 female nurses, 56 had bachelor's degrees; and of 75 male nurses, 34 had bachelor's degrees. If a nurse is selecte

"The Chisholm Trail" and the "Goodnight-Loving Trail" are two prominent examples of A) cattle trails heading out of Texas. B) patterns of migration of American

Which of the following is characteristic of the Aryan Age? A. Hinduism B. Sanskrit writing C. the Harappa civilization D. the Xia dynasty

Veins have a much lower blood pressure than arteries. Which of these prevents backflow of blood in veins?

What polynomial identity should be used to prove that 162 = (10 + 6)2?

Complete the sentence with the appropriate form of the verb Ver: Ellas _______ los cocos.

Which of these diagrams best represents the steps in the formation of planets? a.) the sun is born, clouds rotate at high speeds, the clouds flatten into an el

Most people understand that there are health risks associated with smoking and using tobacco products. in spite of this knowledge, many people still choose to s