Classifying Matter
Fill in the blank: Nitrogen gas, which is made of only nitrogen atoms, is a ______________________.
What is Element
A property that can be observed directly or measured without changing the chemical identity of the substance
What is a physical property
What is formed during the observation of a chemical property?
What is a new substance
Fill in the blank: Cutting, crushing, or melting are examples of ___________________ changes
What is physical
The term to describe the energy of particles moving in an object.
What is kinetic energy
The term for anything that has mass and takes up space (has volume).
What is matter.
The term for how much matter something has
What is mass.
How easily a substance will set on fire
What is combustibility?
Release of light and temperature change are evidence of what kind of change?
What is chemical
Fill in the blank: Kinetic Molecular Theory states that particles in an object are in constant, random, _____________.
What is motion
The term for two or more elements chemically combined in a fixed proportion.
What is a compound.
What is volume.
How easily a substance reacts, usually with an acid or base
What is reactivity
The process by which the atoms of one or more substances are rearranged to form different substances
What is a chemical reaction or chemical change
Substances in this state of matter have a fixed volume but no fixed shape
What is a liquid
Soil, which contains rocks, decaying plants and animal matter, trapped gases, and clay is what kind of mixture?
What is heterogenous?
The temperature at which a liquid becomes a gas
What is boiling point
What is a cow or a bat
What is 8
The process by which a gas changes directly to a solid.
What is deposition
Fill in the blank: In salt water, water is the solvent and salt is the ______________________.
What is solute.
The units in which we measure the density of a regularly shaped solid.
What is g/ cm^3
The creation of rust is an example of which chemical property?
A solid suddenly appears in what was a liquid, providing evidence that a chemical change has occurred. What is the term for this solid?
What is a precipitate
Changes between states of matter are what kind of change?
What is a physical change