What is the name of glass object which provides liquid-liquid heterogen separate in a controlled way?

Who established the first Chemistry Lab on Earth?

Which scientist realized firstly if glass and ebonite are rubbed to each other they are electrified?

To snatch an electron from an atom or an ion is the event of ................

Fill in the following blanks.

............... developed an equation which describes the energy of electrons and their behaviours.

................ used emission spectrometry to explain the model.

................ and ................ created similer periodic table though they lived in different countries.

Which is the most active metal?

Which is the composite whose ionic character is the most?

Which gives correctly the relationship among the masses of subatomic particles?

Which increases, when going in the direction of the arrow from the given part of the periodic system?

Fill in the following blanks.

…………………………… is the gravitational force which keeps the atoms of a molecule together.

………………………….. is the force which keeps molecules together.

I- it consists of formula parts.

II- It happens with electron exchange.

III- There are cation and anion in it.

Which are/is correct for ionic bound components?

Which are in the molecular structure?

What is the total number of the element ,which is 4th period in 2A group, and the HCO₃ ion in the compound?

Which has the least dissolving in the water?

Food salt dissolves well in the water since it is a polar substance.

I- It’s physical qualities have changed.

II- Chemical changes have happened among kinds.

III- The distance among kinds has increased in dissolving event.

Which are / is true?

Why doesn’t London Forces suit the chemical bond definition?

Which does viscosity in liquids bond to the followings?

I-Interactions among molecular

II- Heat

III-Kinetic energy

Which solid group does this object belong to?

Which placement of atomic and ionic radius of oxygen element is correct?