What does a chemical formula like Na2CO3 tells us?

Has The property of inertia

How much energy must be supplied to break a single 21ne nucleus into separated protons and neutrons if the nucleus has a mass of 20.98846 amu?

Are alkaline earth elements metals or metalloids?

Consider the reaction between no and cl2 to form nocl: 2no (g) + cl2 (g) ⇌2nocl (g) a reaction mixture at a certain temperature initially contains only [no] = 0.65 m and [cl2] = 0.53.

Whats the meaning of life? This is a hard question to answer ... Some may think its rude to ask or they might be wondering the same thing ... Write and explain what you think it is ...

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?