Calculating Number of Particles in Samples (C.8)(B)
Calculating Percent Composition (C.8)(C)
Naming Compounds (C.8)(D)
Metallic Bonding (C.8)(E)
100
In chemistry, the number of particles of a substance is expressed by a unit called this.
What is a mole
100
To find the number of atoms in 2.14 mol of Carbon, you must multiply the number of moles by this
What is Avogadro's number (or 6.02x10^23)?
100
To calculate percent composition, before multiplying by 100, you must divide the mass of the element in molar compound by this.
What is the molar mass of the compound
100
Any compound with the Greek prefixes, such as: (1)mono, (2)di, (3)tri, (4)tetra, (5)penta, etc.
What is a binary covalent compound?
100
Alloys are mixtures composed of two or more elements, at least one of which is a metal.
What are alloys?
200
The smallest particle into which the substance can be divided and still be that substance
What is a representative particle.
200
The mass of one mole of material
What is molar mass?
200
This element is 26% of the mass of the compound MgCl2
What is Magnesium?
200
Acids are compounds in which H+ is bonded to an anion (nonmetal) in aqueous solution. Acids are named based on the suffix of the anion.
Bases are compounds that produce hydroxide ions [OH1-] when dissolved in water. Bases are named in the same way as other ionic compounds.
How are acids and bases named using the IUPAC rules?
200
Yes
Are all metals malleable? Yes or No
300
The number of representative particles in a mole of Hydrogren
What is 6.02 ×10^23
300
The number of atoms in 2 moles of Helium
What is 1.20 x 1024 atoms of Helium
300
With a molecular formula of C2H6, methane is also known by this, its empirical formula.
What is CH3?
300
Adding the prefix; hydro before it.
What is an acid called that does not contain oxygen in it? (mostly binary)
300
True
When a difference in thermal energy is applied across a metal, it is quickly and evenly transmitted throughout. True or False
400
Born in Turin in 1776, this Italian scientist is forever linked to the number 6.02x10^23
Who is Avogadro
400
The mass in grams of 3 mol N2
What is 84.042 grams of N2?
400
A 10 gram sample of a compound containing 7.22 grams of magnesium and 2.78 grams of nitrogen yields this empirical formula
What is Mg2N3?
400
Atoms in covalent compound are held together by covalent bond—bonds formed by the sharing of electrons between atoms. A covalent bond forms between two atoms with high electronegativity, usually nonmetals.
How are covalent compounds named using the IUPAC rules?
400
In the neucleus.
Metallic atoms have few valence electrons and low ionization energies. Where are their valence electrons located?
500
As the level of complexity of matter increases from atoms to molecules to compounds, this happens to the number of representative particles in a mole.
What is stays the same.
500
The number of molecules are in 7.1 grams H2O.
What is 2.4 x 10^23 molecules of H2O
500
Oh, by the way, this is the empirical formula for a subtance that is 94.1% oxygen and 5.9% hydrogen.
What is OH?
500
An ion forms when an atom or a group of atoms loses or gains electrons. If the ion has a positive charge, it is a cation. If it has a negative charge, it is an anion. When ionic bonds from between cations and anions, an ionic compound is formed.
How are ionic compounds named using IUPAC rules?
500
A chemical bond in which electrons are shared over many nuclei and electronic conduction occurs.