Classifying Matter (Day 2)
Matter is
The pH of a substance is this type of property
What is - a physical property ?
There are two pieces of information you need to find the density of an object
What is - mass and volume ?
The substance that does the dissolving in the solution is called the
What is - the solvent ?
A compound is
What is - Two or more elements that have been chemically combined (ex. HCl or NaCl) ?
The flammability of a substance is this type of property
What is - a chemical property ?
Objects with LESS density do this
What is - float ?
The substance that is dissolved in a solution is called the
What is - the solute ?
A heterogeneous mixture is
What is - mixture that is NOT uniform throughout ?
A physical property is
What is - a property that can be observed without changing the chemical composition of the substance ?
Objects with MORE density do this
What is - sink ?
The dissolving rate of a solute can be increased in three ways. Those three ways are
What is - 1. decrease the particle size (crush it), 2. increase temperature (heat it), 3. increase motion of particles (stir it/shake it) ?
A homogeneous mixture is
What is - A mixture that is uniform throughout ?
A chemical property is
What is - observed during or after a chemical change has occurred ?
The formula for density is this
What is - D = M / V ?
As temperature increases, solubility of a substance
What is - increases ?
An element and a compound are different because
What is - An element is a pure substance made of the same type of atom (ex: H), but a compound is a pure substance made of two or more different atoms chemically combined in a specific ratio (ex: H2O) ?
Sally wrote the wrong set of notes for her class. She ripped the paper, then burned it. The ability for the paper to be ripped is a ______ property, and the ability for the paper to burn is a _______ property.
What is - ripped = physical property, burn = chemical property ?
If the mass of a cube is 20g and the volume is 2cm3, the density of the cube is
What is - 10g/cm3 ?
Ms. Mitchell has to make tea for her tea party, but her friends will arrive in less than 20 minutes! In order to quickly dissolve the sugar (solute), Ms. Mitchell can do this to the tea (solvent)
What is - heat the tea ?