Ch. 1-2
A type of mixture, components are distributed uniformly throughout. The composition and appearance is uniform
What is a homogeneous mixture?
Type of ions that nonmetals form
What is an anion?
Name this polyatomic ion: CN-
What is cyanide?
The molar mass of ammonia (NH3)
What is 17.03 g/mol?
1x14.01=14.01
3x1.008=3.024
14.01+3.024=17.03 g/mol
Balance Na(s)+H2O(l) ➜ NaOH(aq)+H2(g)
What is 2Na+2H2O ➜ 2NaOH+H2?
Type of change that rusting is categorized into
What is chemical change?
What is the furthest left group on the periodic table?
What are Alkali Metals?
Xenon tetrachloride's electron pair geometry
What is octahedral?
Element with the smallest atomic radius: Mg, Sr, Si, Cl
What is Cl?
Write a balanced equation for the reaction of solid aluminum metal with solid diatomic iodine, producing solid Al2I6
What is 2Al(s)+3I2(s) ➜ Al2I6(s)?
Osmium's density if 2.72 g has a volume of 0.121 cm3
What is a density of 22.5 g/cm3?
What is the average atomic weight of this element:
90.92% abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82% abundance with 21.99 amu?
What is 20.17 amu?
90.92% ➜ 0.9092x19.99=18.17 amu
20.99% ➜ 0.0026x20.99=0.055 amu
8.82% ➜ 0.0882x21.99=1.94 amu
18.7+0.055+1.94=20.17 amu
The chemical name for FeO2
What is iron (IV) oxide?
Atom with the EC of 1s22s22p63s23p64s23d104p65s24d2
What is Zirconium?
Classify Mg(s)+Cl2(g) ➜ MgCl2(s) as acid-based or oxidation-reduction reaction
What is an oxidation-reduction reaction?
Dalton's Theory postulate that is consistent with the following observation:
When 100 grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced
What is Dalton's 5th postulate (Atoms are neither created nor destroyed during a chemical reaction)?
100 g calcium carbonate ➜ 44 g carbon dioxide and 56 g carbon dioxide = 100 g
The speed of red light at a wavelength of 700 nm
What is 3.00x108 m/s?
N2's bond type
What is a triple bond?
A+BX ➜ AX+B is the equation for what reaction
What is a single displacement reaction?
Sample of 0.53 g carbon dioxide obtained by heating 1.31 g calcium carbonate. Find the precent yield
What is 92.01% yield?
Number of protons, neutrons, and electrons that 16O2- has
What is 8 protons, 8 neutrons, and 10 electrons?
The bond type of Fe-Fe
What is a metallic bond?
Fe-Fe ➜ 1.8-1.8 = 0
A substance with unpaired electrons that is attracted to a magnetic field
What is paramagnetic?
Which is a net ionic equation?
1. H2O(s) ➜ H2O(l)
2. 2H2O(l) ➜ 2H2(g)+O2(g)
3. H+(aq)+OH-(aq) ➜ H2O(l)
What is 3. H+(aq)+OH-(aq) ➜ H2O(l)?
How many molecules of I2 are produced in a reaction of 0.4235 mol of CuCl2
2CuCl2+4KI ➜ 2CuI+4KCl+I2
What is 1.275x1023 I2 molecules?