A scientists claimed that he had cloned a guinea pig to produce two offspring, a male and a female. The claim is not valid because

Which element is likely to be the most reactive? 1bromine 2chlorine 3fluorine 4iodine

What other forms of radiation may come from the stars?

Carbon dioxide is formed when two oxygen atoms chemically combine with a carbon atom. Which term best describes carbon dioxide? A. mixture B. element C. atom D. compound

A student had two dilute, colorless solutions, HCl (aq) and NaOH (aq), which were at the same temperature. The student combined the solutions, and the reaction represented above occurred.

Why is mercury not "destroyed" when coal containing mercury impurities is burned?

What information would you need in order to convert Molarity to % by volume

How to determine the charge of a polyatomic ion?

What is at mass no of potassium

According to the modern atomic theory, are atoms divisible?

Running a mile involves