Elements & the Periodic Table
What is a chemical property is any characteristic of a substance that can be observed and produces one or more new substances?
Chemical property
What two things make up most of an Atom’s mass
Protons and Neutrons
A balanced chemical equation is a summary of a chemical equation for that satisfies what law?
The law of conservation of mass
What is the rate at which an object’s position changes?
Speed
What is a transfer of thermal energy due to a temperature difference?
Heat
What are elements in the same vertical column on the periodic table that share similar physical and chemical properties called?
Groups
What are composed of protons, neutrons, and electrons?
Atoms
What is the equation for synthesis?
A + B = AB
What is the rate of change of velocity?
Acceleration
What is the transfer of energy by electromagnetic waves?
Radiation
What are the properties that can be observed without changing the identity of the substance, including the appearance and behavior of the substance?
Physical property
Atoms of the same element with different numbers of neutrons are called?
Isotopes
What is the equation for decomposition?
AB = A + B
What is a push or pull on an object?
Force
What is the transfer of thermal energy by collisions between more energetic and less energetic particles.
Conduction
What can be classified as a pure substance or a mixture?
Matter
What is the current atomic model?
The electron cloud model
What is the equation for single displacement?
A + BC = AC + B
What is the force that opposes the sliding motion of two surfaces that are in contact?
Friction
What law states that energy spontaneously spreads from regions of concentrations to regions of lower concentration?
The second law of thermodynamics
What law states that matter is neither created nor destroyed in a chemical reaction?
The law of conservation
Each element has a unique number of protons, True or False?
True
What is the equation for double displacement?
AB + CD = AD + CB
What is one of four fundamentals forces, It is an attractive force between all objects that have mass?
Gravity
What law states that if the mechanical energy of a system is constant, then the increase in thermal energy of that system equals the work done on that system plus the thermal energy transferred into that concentration?
The first law of thermodynamics