Characteristics of matter
What is the density of water?
- 1/g/cm 3
How many elements are known?
-118
In the formula CaCO 3 are ? atom(s) of oxygen, ? atom(s) of calcium, and ? atom(s) of carbon.
-3 -1 -1
What is the density of an 800 gram object that occupies 200 cm 3 ?
-4/g/cm 3
Elements contain ? of the same kind.
-Atoms
The Nobel Prize was won by ? for finding that electrons in the atom stay in specific ?
-Bohr -Orbits
Electrolysis
-Breaks down water using electricity
The water underneath the floating object exerts a push or force called ? that holds it up.
-Buoyancy
Substances made of two or more chemically bonded elements are called ?
-Compounds
The orderly arrangement of everything in the universe, from atoms to galaxies, provides evidence in favor of _____.
-Creation -intelligent design
Paper and cork float on water because they have low ?
-Density
Some physical properties of matter include:
-Density -Color -Luster -Taste
The elements for the equation for density.
-Density = Mass/Volume
The process of splitting a molecule by passing an electric current through a solution of the substance is known as ?
-Electrolysis
The process of electrolysis used to coat objects with metals is called ?
-Electroplating
Substances which are made of just one kind of atom are called ?
-Elements
Density is not a physical property of mas.
-False
Atom
-Found in molecules
Bounding
-Keeps molecules together
Graduated cylinder
-Measures amount of water
Substances made of two or more elements which are not chemically bonded are known as ?
-Mixture
The atmosphere is a(n) _____
-Mixture
The smallest unit of a substance consisting of two or more atoms is a ?
-Molecule
The bond between molecules of a gas is _____.
-None
All matter has a particular set of characteristics known as properties.
-Physical
Electroplating
-Practical use of electrolysis
The first model of an atom was proposed by ? in 1911.
-Rutherford
Molecule
-Small unit of matter
New discoveries of positrons, mesons, neutrinos, and others are usually called ? particles.
-Subatomic
Subscript numbers in a chemical formula indicate _____.
-The number of atoms of each element
Cubic centimeter
-Unit of measure
