Reactions
Thermo
Stoic
Atomic Structure
Potpourri
100
Right side of a chemical equation
What is Products?
100
The state function for disorder in a system.
What is entropy?
100
The measured amount of product obtained after performing a chemical reaction.
What is the experimental/actual yield?
100
Scientists use this to describe how electrons move around the nucleus.
What is the electron cloud model?
100
Visible color with the longest wavelength?
What is red?
200
This is formed when Barium chloride is mixed with sodium sulfate.
What is Barium Sulfate? (Precipitate works as well)
200
Name the amount of energy (in joules) that is necessary to increase the temperature of 100 g water from 30C to 50C.
What is 8400 J? (accept 8.4 kJ)
200
Hydrogen and oxygen gases react under a specific set of conditions to produce water. This many moles of oxygen would be required to produce 5.0 moles of water.
What is 2.5 mol O2?
200
This type of bond is formed by 2 atoms each contributing 1 electron to a shared electron pair
What is a covalent bond?
200
These substances control the rates of chemical reactions.
What are Catalysts?
300
Name of the nuclear fusion reaction that happens in stars (like our sun)
What is Deuterium Fusion/Burning?
300
A spontaneous reaction run in the reverse direction will have this sign for Delta G
What is Positive?
300
Ammonia decomposes to produce nitrogen and hydrogen gases. This many moles of H2 can be formed by the decomposition of 0.145 moles of ammonia.
What is 0.218 mol H2?
300
An ion that is positively charged.
What is a cation?
300
This English chemist and physicist discovered hydrogen.
Who is Henry Cavendish?
400
Name the products for the following reaction (no need to balance)
Chlorine gas is bubbled into a solution of COLD sodium hydroxide
What is NaOCl, NaCl, and H2O (sodium hypochlorite, sodium chloride, and water)
400
The entropy of vaporization for ammonia is 97.6 J/mol * K and has a boiling point of 239.7K. Calculate the enthalpy of vaporization for ammonia in kJ
What is 23.4 kJ?
400
Sodium and chlorine react to produce sodium chloride (table salt; MM=58.5 g/mol). Determine the amount of product that can be produced from 24.7 g of sodium and excess chlorine
What is 62 g NaCl?
400
Mass number - atomic number = _____
What is the number of neutrons?
400
Matter that does not enter chemical reactions.
What is inert?
500
A student has an unknown metal chloride that appears to be a white powder. It readily dissolves in water and forms a precipitate when sodium phosphate is added. Which of the following could be the identity of the compound?
A) Zn(ii) Chloride
B) Silver(i) Chloride
C) Iron(iii) Chloride
What is A, Zn(ii) Chloride
500
Calculate the standard enthalpy of the reaction N2O (g) + NO2(g) → 3 NO(g) from the given data in kJ to 4 significant figures.
What is 155.7 kJ? (+/- 5 kJ is ok)
500
When copper (II) chloride reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed. If 15 g CuCl2 (MM=134.5 g/mol) react with 20 g NaNO3 (MM=85 g/mol), name the quantity of sodium chloride (MM = 58.5 g/mol) that can be formed.
What is 13.0 g NaCl?
500
An atom with the same number of protons but different number of neutrons.
What is an isotope?
500
These are microscopic spheres of 60 atoms of pure carbon in a sphere-like structure that resembles a geodesic dome.
What are Buckyballs?