General Chemistry
A reaction that releases heat is called what?
An endothermic reaction.
When two or more atoms are joined together chemically
What is Molecule
The more reactive metal: lithium or gold
What is lithium?
---------- is known as the universal solvent
What is Water
The metal element in table salt
What is sodium (Na)
The speed at which all light travels.
What is the speed of light
Name four variables that affect the rate of a reaction.
What are temperature, surface area, catalyst and concentration
Endothermic Reaction
A substance formed by chemically combining two or more atoms of different elements is known as
What is Compound
What type of reaction is this:
A + AB ----> AB
The solution in which sugar dissolves faster: hot coffee or iced coffee
What is hot coffee
Water is made of these two elements?
What is hydrogen and oxygen?
An example of a type of EM radiation with lots of energy.
What is x-rays or gamma rays
How does increasing temperature affect the movement of molecules?
What is molecules move faster?
What term refers to anything that occupies space, physical and chemical properties and exists in gas, liquid or solid form
What is Matter
All matter exists in three forms solid, liquid and
What is Gas
The elements can be found on the right side of the periodic table of the elements.
What are noble gasses?
Rock candy is an example of this type of solution: unsaturated, saturated or supersaturate
What is supersaturated
The three elements in a combustion reaction
What is Carbon, Hydrogen and Oxygen
The color(s) reflected by an orange
What is orange
Science that deals with composition, structure, and properties of matter
What is Chemistry
Elements represent unique forms of these little thingies. The building blocks of everything!
What are atoms.
When one chemical changes its state of matter, the change is called
What is Physical Change
The atomic number tells us this.
What is the number of protons?
There are this many periods on the periodic table of the elements.
What is seven?
The semi-metal in this group of elements:
Ag, Pb, Si or P
What is Si or Silicon
The color formed when red and blue are mixed
What is purple
Substance that contains space and mass
What is Matter
This is the smallest type of atom.
What is Hydrogen.
What type of change occurs when ice melts to water
What is Physical
What type of reaction is this?
AB -----> A + B
What is Decomposition?
The solute in ocean water
What is salt.
What elements are steel made of?
What is C and Fe?
The type of EM radiation just above violet light that causes sunburn
What is ultraviolet
Curling hair with a curling iron would be considered what type of change
What is Physical
Atoms bond together to form these.
What are molecules?
When a substance gains oxygen, the substance is
What is Oxidized
What type of reaction is this?
CxHy + O2 ----> CO2 + H2O
What is combustion?
What is oil
The number of elements on the current periodic table
What is 118?
What is infrared
A hairdresser giving a client a perm would be considered what type of change
What is Chemical