Define Terms
Periodic Table
Intro to Chemistry
Math in Chemistry
Random
100
What is an Atom?
What is the smallest part of a substance that cannot be broken down chemically?
100
The number of protons in one atom of gold (Au)
What is 79?
100
The number of millimeters in one meter
What is 1000?
100
If
What is 1 mole?
100
A description of a covalent bond
What is a type of bond where atoms share valence electrons (usually formed between two non-metals)?
200
What is Matter?
What is Matter is anything that takes up space and can be weighed?
200
One example of a noble gas
What are (any one of the following): Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and element 118 (named Oganesson, symbol Og)
200
What is a hypothesis?
What is a random guess?
200
The meaning of ΔT
What is the change in temperature over time?
300
What is a Molecule?
What is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction?
300
The names of two elements that each have four valence electrons
What are (any two of the following): Carbon (C), Silicon (Si), Germanium (Ge), Tin (Sn), Lead (Pb), or Flerovium (Fl)?
300
The smallest unit of an element which retains the properties of that element
What is an atom?
300
The balanced equation for photosynthesis
CO2 + H2O → C6H12O6 + O2
What is:
6CO2 + 6H2O → C6H12O6 + 6O2
300
The number of energy shells in one atom of calcium
What is 4?
400
What is a Protons, Electron, and Neutron?
What is the three subatomic particles: Protons, Neutrons and Electrons. Protons have a positive charge while Electrons have a negative charge. Neutrons, on the other hand, don't have a charge.
400
A nucleus of neutrons and six protons surrounded by six electrons. Is what element?
What is Carbon?
400
The process by which liquid becomes a gas
What is evaporation?
400
Every chlorine atom has A) 7 electrons B) 17 neutrons C) a mass number of 35 D) an atomic number of 1
What is C) a mass number of 35?
400
The type of chemical reaction in which ΔH is positive
What is an endothermic reaction?
500
What is a Solid, Liquid, and Gas?
What is Three states of matter. Solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape?
500
A Bohr model of Sodium (symbol)
500
Which statement concerning elements is true? A) Different elements must have different numbers of isotopes. B) Different elements must have different numbers of neutrons. C) All atoms of a given element must have the same mass number. D) All atoms of a given element must have the same atomic number
What is D) All atoms of a given element must have the same atomic number?
500
The number of carbon atoms in one molecule of glucose
What is 6?
500
Of the following elements, the one that has the greatest electronegativity: fluorine (element 9), francium (element 87), cobalt (element 27), iron (element 26)
What is fluorine?