Matter
It is the state of matter in which the substance has a definite volume, but indefinite shape.
What is a liquid?
Is the direction in which ionization energy increases as it moves through the periodic table, until it reaches the element with the highest measure.
What moves up and to the right, all the way to Helium?
Is the shape a molecule forms when the central atom is attached to three other atoms, and it has a lone pair of electrons.
What is trigonal pyramidal?
4NH3(g) + 6NO(g)→5N2(g) + 6H2O(g) How many moles of each reactant were there if 13.7 moles of N2(g) is produced?
10.96 moles of NH3 16.44 moles of NO
The first one is the property that allows water to "stick" to other molecules, while the second one is the property that allows water molecules to stick together.
Adhesion and cohesion.
It is the method used to separate the plasma, platelets, and different components in blood.
What is centrifugation?
What is ion Ni+2
protons=28
neutrons=25
electrons=26
Are the shape and the intermolecular force of attraction that forms when three atoms are bonded together, and the central atom has no lone pairs.
What is linear, and forms London dispersion forces of attraction?
5.6 g of solid CO2 is put in an empty sealed 0.004 m3 container at a temperature of 300 K. When all the solid CO2 becomes gas, what will be the pressure in the container?
R=0.082 atm*L/mol*K; 1 m3 = 1000 L; C = 12 g/mol; O=16 g/mol.
0.7831 atm.
The NaCl solubility @30ºC is 35 g NaCl per 100 g H2O.
If at those conditions, we dissolve 64 g NaCl in 175 g H2O. How would we classify the solution (unsaturated, saturated, supersaturated)?
Supersaturated solution.
It is an observable or measurable property of the substances. Conductivity and color are examples of this.
What is a physical property?
Is the bond that forms when two nonmetals UNEQUALY SHARE their valance electrons.
When does polar covalent bond occur?
They are the polarity of the molecule, shape, and intermolecular force of attraction of water.
What is a bent, polar molecule that forms hydrogen bonding (because it has bonds between H-O)?
A toy balloon has an internal pressure of 1.05 atm and a volume of 5.0 L. If the temperature where the balloon is released is 25ºC, what will happen to the volume when the balloon rises to an altitude where the pressure is 0.65 atm and the temperature is –15ºC?
V = 6.99 L
A solution of NaCl has a molarity of 0.549 M. How many moles are in 350 mL of this solution?
0.192 moles of NaCl
Is the type of change that occurs when the substance changes its appearance due to a transformation of the substance itself.
What is a Chemical change?
It is the abbreviated electron configuration,and the number of valance electrons of Osmium (Os).
What is [Xe]6s24f145d6 and has 2 valence electrons?
Is the chemical formula, and classification of dinitrogen trisulfide.
What is N2S3, a molecular compound?
Identify the limiting reagent for the given combination of reactants. Calculate the leftover mass of whatever substance will be in excess and how many grams of HF will be made, if there are 5.33 moles of fluorine and 2.22 moles of ammonia.
F2 (g) + NH3 (g) --> N2F4 (g) + HF (g)
Limiting reactant: F2 ; 1.496 g of NH3 are leftover , and 127.92 g of HF are produced
A Ca(OH)2 solution has a concentration of 0.12M. What is the pH of the solution?
pH = 13.38
Is the state of matter with the lowest energy. It is a gas that behaves like a super atom, and occurs at very low temperatures.
What is the Bose-Einstein (BE) condensate?
Is the Abbreviated electron configuration, classification, period, and group of Copernicium (Cn).
Electron configuration: [Rd]7s25f146d10
Classification: Transition metal
Period: 7
Group: 12
It is the name, and classification of Fe2(SO4)3?
What is Iron (III) sulfate, an oxisalt (aka tertiary salt, aka ternary salt)?
C2H4(g) + 3 O2(g) → 2 CO2(g) + 2 H2O(g)
How many liters of vapour water can be formed if 1.25 liters of oxygen are consumed in this reaction if it takes place at a pressure of 1.2 atm, and temperature of 298 K? R=0.082 atm*L/mol*K
0.833 L of water are produced from the reaction.
What it the molarity of a H2SO4 solution with a pOH of 12.5?
The concentration of the H2SO4 solution is 0.016M.