The subatomic particle located outside of the nucleus.
What is an electron?
100
The chemical bond formed by transferring an electron from a metal cation to a nonmetal anion.
What is an ionic bond?
100
This law states that matter is never created or destroyed.
What is the law of conservation of mass or matter?
100
When we mix sugar into tea or coffee and the sugar dissolves, we have made a solution or homogeneous mixture. This is the term for sugar's role in the solution.
What is the solute?
100
The following data about soda pH was collected: diet coke - pH = 2; root beer - pH = 4; Fanta Orange pH = 3. This soda has the highest acidity.
What is diet coke?
200
The periodic table group containing elements that usually form ions with a 1+ charge.
What is the alkali metals?
200
Another name for ionic compound is a salt. These are often the product in a neutralization reaction. In their solid form, salts form this structure.
What is a crystal lattice structure?
200
The number of atoms in a mole of gold, platinum, sodium, helium, or any other element.
What is 6.02 x 10^23 atoms?
200
The reason why ethanol dissolves in water but oil does not.
What is the "like dissolves like" rule or polar molecules dissolve in polar substances.
200
This type of acid partially dissociates (or ionizes) when dissolved in a solvent.
What is a weak acid?
300
As we move from left to right across the periodic table, this property of atoms decreases.
What is the atomic radius?
300
The bond formed when two nonmetals come together and share electrons.
What is a covalent bond?
300
This is the molar mass of ammonia (NH3). (Use proper units.)
What is 17 g/mol?
300
The concentration of a 1000g salt water solution with 5 mg salt, expressed in ppm.
What is 5 ppm?
300
When these are dissolved in water they dissociate and give away a hydrogen ion (or proton) to water, forming hydronium.
What is an acid?
400
According to the most recent model of the atom, most of the atom's mass is located here.
What is the nucleus?
400
The specific type of covalent bond formed when two nonmetals with five valence electrons each bond.
What is a triple covalent bond?
400
One mole of O2 reacts with two moles of H2 to form two moles of water. This is the number of moles of water that will form if four moles of O2 react with unlimited H2.
What is 8 moles of water?
400
A bottle of sulfuric acid is labeled as 10M. This is the number of moles sulfuric acid in 250 mL of the solution.
What is 2.5 mol sulfuric acid?
400
When sulfuric acid (H2SO4) reacts with water, the sulfuric acid dissociates. These two polyatomic ions (charged molecules) are formed.
What are HSO4- and H3O+?
500
The mass of an atom is determined by adding the number of these together.
What are protons and neutrons?
500
Compounds formed by this type of bond have high melting points, conduct electricity in solution, and are often soluble in water.
What is an ionic bond?
500
A sample contains 1.2 x 10^24 atoms of gold. This is the mass of the sample in grams.
What is 394 g Au?
500
The grams of sucrose in 2 L of a 0.25 M solution of simple syrup. (The molar mass of sucrose is 342 g/mol.)
What is 171 g sucrose?
500
The hydroxide ion concentration of a solution with a hydronium ion concentration of 5.0 x 10^-3. (Remember proper scientific notation.)