CHEM chapter 1- molecular reasons
according to the nuclear theory of the atom...
most of the volume of the atom is empty space
what does the nucleus contain
protons and neutrons
which state of matter have both a fixed volume and fixed shape
solid
Which change is a chemical change
the burning of methanol
which description best describes the field of chemistry
the science that investigates the connection between the macroscopic world and particles that compose it
Rutherford believes that the nucleus of the atom...
has a positive charge and contains most of the mass of the atom
Which statement best describes one of the main goals of alchemy
to transmute ordinary materials into gold
who proposed the atomic theory of matter
Dalton
which Greek thinker was among the first to suggest that matter was composed of atoms
Democritus
which statement about the structure of the atom is incorrect
most of the volume of the atom is empty space occupied by protons
which of the following is a possible explanation for a set of observations
a hypothesis
Which statement is not part of Dalton's atomic theory
atoms have an equal number of protons and neutrons
what are the physical properties of matter
color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point
which substance is a pure substance
copper
which of the following is a heterogeneous mixture
crunchy peanut butter/granola
which substance is an element
hydrogen
which statement is best categorized as a law
in a chemical reaction, matter is neither crated nor destroyed
"what goes up must come down" is an example of a scientific
theory
