What is the vertical row of elements called? What do they have in common?

White light is made up of A. only the types of visible light with very long wavelengths. B. ultraviolet light and gamma rays. C. a spectrum of many different colors of light. D. infrared light and radio waves.

All living organisms are composed of A. at least three cells. B. one or more cells. C. only one cell. D. at least 100 cells.

What is si unit of time?

A chemist is making 200 l of a solution that is 62% acid. he is mixing an 80% acid solution with a 30% acid solution. how much of the 80% acid solution will he use?

Which of the following statements is FALSE? A) Anions are usually larger than their corresponding atom. B) Metals tend to form cations. C) Atoms are usually larger than their corresponding cation. D) The halogens tend to form 1 + ions.

Biofuel is any fuel that is produced from living or once living matter in a short period of time, days, weeks, or even months.

How are revolution and year related

Read the scientific question below. "Does sunlight make plants live?" What is a likely hypothesis for the question?

A chemist is using a solution of HNO3 that has a pH of 3.75. What is [H+] for the solution?

What is the oxidation number for CO2