Chemistry 101
The smallest particles into which an element may be broken down without changing the identity of the element.
What are atoms?
-273.15 degrees Celsius equals this
What is 0 K?
The number of protons in an atom is called this.
What is the atomic number?
The breakdown of a single reactant compound into two or more simpler substances, either elements or compounds.
What is decomposition reaction?
Cu2Cl
What is Copper (II) Chloride?
This state of matter, particles have enough energy to move freely but not enough energy to overcome their attraction for each other.
What is liquid?
This instrument is used to measure atmospheric pressure.
What is the barometer?
The number of atoms that are exactly in one mole of atoms.
What is 6.022 x 10^23?
A reaction in which two (or more) substances chemically combine to form one new substance.
What is combination reaction?
HF
What is Hydrogen Flouride (monoflouride)?
The amount of force exerted upon a surface per unit
What is pressure?
Standard temperature and pressure (STP)?
What is 273.15 K and 760 torr?
This law implies that, at constant temperature and pressure, the molar volume of an ideal gas is constant.
What is Avogadro’s law?
The positive and negative parts of two ionic compounds are interchanged.
CaCO3
What is calcium carbonate?
The negatively charged subatomic particles in an atom
What are electrons?
This is how closely a measured value matches the actual value.
What is accuracy?
The isotope the atomic mass unit defined relative to.
What is carbon-12?
The reaction where replacing one element in a compound with another.
What is a single-displacement reaction?
Si
What is Silicon?
The number of significant figures the number 68,080 have.
What is 4?
1 millimeter of mercury (1mmHg) equals this.
The ratio of mass to volume
What is density?
What is single-displacement reaction?
Pb
What is lead?