What is indirect evidence in science

What is the atomic number of an element whose atoms each contain 47 protons, 60 neutrons, and 47 electrons?

It is not possible for a solid substance to change directly to the gas phase true or false

Determine the percent composition of CH2O.

The particles of a gas are actually - electrons or protons protons or neutrons atoms or elements atoms or molecules

Find the average atomic mass of neon, given the atomic masses and relative abundance of its 3 isotopes

How many grams of KCl are produced when 60 grams of K are reacted?

Whats a solution! people

How do compounds affect an atom's stability

You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you need to mix in order to make the required solution?

The definition of volume is? a) width*height b) the space occupied by mass c) the space occupied by a liquid d) the mass of liquid required to fill a container