Technetium-104 has a half life of 18.0 minutes. how much of a 165.0 g sample remains after 90.0 minutes?

Is the formation of a hydrate a physical or chemical process

What are the characteristics of fluids

Which statement best describes the structure of covalent network solids? A. They are giant structures held together by weak forces of attraction. B. All the atoms are covalently bonded to other atoms to form a lattice-like structure. C.

Where are the electrons located in an atom?

Describe how you would prepare a supersaturated solution.

Why is conductivity be the best test to find a metal, non-metal or metalloid?

In which way does a na1 + ion differ from a neutral na atom?

Which would not be associated with stable atmospheric conditions afternoon thunder showers is the answer

Which is not a characteristic of a compound? It is a mixture of elements. It has properties that differ from its component elements. It has a fixed proportion of elements.

Can you think of other possible ways scientists can determine what climate was like in the past besides studying ice cores?