Which of the following ideas about the atom changed when new evidence was discovered?

A. Elements are different kinds of atoms.

B. All matter is made up of atoms.

C. Atoms cannot be divided.

D. Atoms are made up of smaller particles.

Can a liquid substance diffuse in another liquid substance

What is a substance made of two or more elements that are chemically combined in a set ratio?

In the following reaction, what is the effect of adding more NO2 to the starting reaction mixture? 2NO2 (g) ⇌ N2O4 (g) It would increase the final quantity of products It would make the reaction more endothermic It would slow the reaction down.

What happens to trypsin above 65°C

The ph of a 0.24 m solution of dimethylamine is 12.01. calculate the kb value for dimethylamine.

Which atom has a change in oxidation number of - 3 in the following redox reaction K2Cr2O7 + H2O + S - - > KOH + Cr2O3 + SO2

Why does fluorine have a higher electronegativity than lithium?

What mineral is this? Irregularly shaped, white with nonmetallic luster, the hardness of 2.5, shows cubic cleavage and dissolves easily in water.

The passage of the USA Patriot Act of 2001 and the creation of the Department of Homeland Security reflect the determination of the United States government to (1) search for weapons of mass destruction in South Asia (2) increase the globalization

Is it possible for 2 different elements to have the same atomic number