Mixtures and Separation
What technique separates a solid from a liquid by using a porous barrier?
What is filtration?
This subatomic particle is found in the nucleus of the atom and confers to it a positive charge?
What is a proton?
the name of the reactant that determines the amount of product formed?
what is the limiting reactant?
In the ideal gas equation this quantity is represented by the letter R
what is the gas constant/8.314
This is the most electronegative element in the periodic table
what is Fluorine
What is the process of separating components based on boiling points?
What is distillation?
This atom has a mass number of 16 with 3 main isotopes
what is oxygen?
298.15K and 1 atm is represented as this condition.
what is SATP/RTP?
What is the volume of 1 mole of an ideal gas at STP (standard temperature and pressure)?
What is 22.4 liters?
this trend increases down the group but decreases across the period.
what is atomic radius
What separation technique uses a solvent to carry components across a medium?
What is chromatography?
This term describes atoms of the same element with different numbers of neutrons?
what are isotopes
This is the volume occupied by 1 mole of a gas.
what is the molar volume
If the pressure of a gas doubles, what happens to its volume (at constant temperature)?
What is it halves?
the size of an anion tends to be this in comparission to its neutral atom
what is bigger
What is the term for a mixture where the components are not uniformly distributed?
What is a heterogeneous mixture?
This scientist proposed a planetary model of the atomic structure which is still used today.
Who is Niels Bohr
this concept is described as the mass of a substance per unit volume; in Chemistry the volume is 1L
what is Normality
Name two assumptions made about ideal gases.
What are gas particles have no volume and there are no intermolecular forces?
this element is found in period 4 group 13
what is Gallium?
Name two methods that can separate a mixture of sand and salt.
What are filtration and evaporation?
18 is the maximum number of electrons that can occupy this energy level.
what is the 3rd energy level
When 50.0 g of ammonium nitrate is decomposed completely according to the reaction:
2NH4NO3→2N2+4H2O+O2
What is the total volume of gases produced at 273 K and 1 atm?
What is 47.6 L
If temperature and amount of gas are kept constant and the pressure of gas vs its volume is studied, this equation will be the result.
what is p1v1=p2v2
This Chemist organized the elements by mass number and found that every 8th element had similar properties.
who is Newland