Properties of Matter
What is the difference between Mass and Weight?
Mass- a measure of the amount of matter in an object.
Weight- a measure of the gravitational force on an object.
Atoms are the smallest units of an element that has the chemical identity of that element.
What is a pure substance?
A sample of matter that has specific chemical and physical properties, such as appearance, melting point, and reactivity.
What does the symbol C represent?
Carbon
What are three examples of matter?
Fog, soil, ice cube, helium
What is density?
The ratio of the mass of a substance to its volume.
What is the atomic number?
The characteristics that identify an element.
What is a molecule?
Is two or more atoms held together by chemical bonds. Often, they have the same type of atom.
What is the symbol for the element name Vanadium?
V
Describe the process that should be used to find the volume of an irregular shaped object.
Displacement
Measuring the volume of a liquid of irregular shaped objects that can not be calculated using the volume formula. Pg. 11
What are examples of physical properties?
mass, volume, density, size of matter, shape, and color
What is the periodic table?
Is an arrangement of all the known elements in order of their atomic number.
What is a compound?
Is a pure substance made up of two or more different types of atoms joined by chemical bonds.
What element is represented by the atomic number 86?
Radon
Select all that apply for Salt (NaCl).
Is salt made of atoms, made of molecules, element, compound, or pure substance?
Salt (NaCl) is made of atoms, a compound, and pure substance.
What are examples of chemical properties?
The ability to change the identity of a substance to a brand new one. For example, baking soda and vinegar create carbon dioxide when combined.
What is the full definition of a group and how many are there?
The elements in a column, and they are organized based on similar physical and chemical properties. There are 18.
What is the difference between a molecule and compound? What is an example of a molecule, vs compound?
Molecules often are made up of the same type of atom, versus compounds must be a pure substance and have different atoms. Example: Water (H2O), Oxygen (O2), Table Salt (NaCl)
What are the symbols for the 6 metalloids?
B, Si, Ge, As, Sb, Te
Select all that apply for Water (H2O).
Is Water made of atoms, made of molecules, element, compound, or pure substance?
Water is made of atoms, molecules, compound, and pure substance.
What are the different states of matter and the characteristics of each?
Solids
Solids have a definite shape and volume. Some examples may be ice, rocks, and fabric from your shirt. Pg. 14
Liquids
Liquids take the shape of the container, but they have a definite volume. Some examples may include water from a bottle, oil, or coffee. Pg. 14
Gas
Gases take the shape and volume of their containers. They move freely from one room to another. Examples of gases include helium, air in the room, or water vapor from boiling water.
What is a period? How many are there?
The elements listed by row in a periodic table. There are 7 of them.
A substance in which the particles are arranged in orderly, geometric, and repeated pattern is a crystal. Example: Diamond
What element is represented by an atomic mass of 207.2
Lead
Select all that apply for Iron and salt mixture.
Is Iron and salt mixture made of atoms, made of molecules, element, compound, or pure substance?
It is made up of atoms.