Definitions
The number of particles or amount of matter that makes up an object.
What is the mass of am object?
Length x Width x Height
How do you find the volume of a regular shaped object?
The ability of something to burn.
What is flammability?
The ability of a substance to dissolve in water.
What is solubility?
Measurements that can be expressed in numbers, instead of words, used to describe a substance.
What is quantitative information?
The instrument that measures mass.
What is a balance?
Put water is a graduated cylinder and record the volume (V1). Put the irregularly-shaped object in the graduated cylinder and record the volume (V2). Use the equation V2-V1.
What is the displacement method?
Bubbles, unexpected change in color or odor.
What are three pieces of evidence that a chemical reaction has occurred?
The properties of density, mass and volume.
What are three physical properties?
A dark substance is formed when you mix iodine with this substance.
What is cornstarch?
The instrument that measures the volume of a liquid.
What is a graduated cylinder?
CM3
What are the units used for the volume of a regularly shaped object?
The process of rusting, which is mixing iron with oxygen.
What is oxidation?
During this type of reaction, the identity of a substance does not change.
What is a physical reaction?
The total mass before a chemical reaction is equal to the total mass after the reaction.
What is the Law of Conservation of Mass?
The movement of heat or electricity through a substance.
What is conductivity?
Mass divided by volume
What is the equation for density?
Limestone becomes pockmarked- covered in holes- when exposed to acid rain?
What is reactivity to an acid?
Melting, Freezing, Boiling/Evaporating, Condensing, Deposition and Sublimation.
What are some examples of physical changes?
Bonds between atoms break, atoms rearrange, and new bonds between atoms are formed, to make new substances.
What do the atoms do in a chemical reaction?
You read the accurate measurement, of the volume of a liquid, on a graduated cylinder, using the bottom of this u-shaped thing.
What is a meniscus?
g/ml
What are the units used for density?
Density, melting point and boiling point.
What 3 properties are useful in identifying an unknown substance?
Two atoms of oxygen and one atom of carbon.
What is CO2- carbon dioxide?
H2 gas + O2 gas = H2O liquid
The chemical reaction that makes water.