Chapter 4 Flashcards
formed when two or more substances chemically combine
Compounds
able to dissolve examples: salt in water, sugar in water
Soluble
occurs when particles in a substance separate and spread evenly
Dissolving
are formed when two or more substances are evenly mixed
Solutions
solid solution of metals and nonmetals
Alloy
element that shares metal and nonmetal properties
Metalloid
mixture of large particles evenly dispersed in a liquid or gas
Suspension
substance in which the solute dissolves
Solvent
process that separates liquids
Distillation
they contain two or more elements
Compounds
they have their own physical properties
Compounds
they do not form randomly
Compounds
formed by elements joining in a specific mass ratio
Compounds
can be broken down through chemical changes
Compounds
can include reactivity with acid, reactivity with oxygen , flammability
Chemical properties
cannot filter out particles
Solutions and colloids
chemical name for table salt
sodium chloride
during photosynthesis, plants use carbon dioxide to make ——————————–
carbohydrates
Sulfur is classified as
a. metal
b. non-metal
c. metalloid
B. non-metal
gelatin, whipped cream, mayonnaise are all examples of
Colloids
Water is classified as a
compound
gold is classified as a
element
Some bacteria can make ____________ from Nitrogen in the air
compounds
are poor conductors of heat and electric current, are brittle, and dull
Non-metals
Copper’s symbol
Cu
Carbon’s symbol
C
Hydrogen’s symbol
H
Iron’s symbol
Fe
2H
2
What is the first “2”
Coefficients
2H
2
What is the “H”
Chemical symbol
2H
2
What is the second”2”
Subscript
H + O = H O
2 2
What is this
Chemical formula
