| Question |
Answer |
| Two or more atoms chemically combined... |
Molecule |
| Pure substance that is made of more than one element... |
Compound |
| The substances that make up a mixture keep most of their own... |
Properties |
| An example of a homogeneous mixture is... |
Salt Water |
| An example of a heterogeneous mixture is... |
Concrete |
| An example of a homogeneous mixture is... |
Bronze |
| An example of a heterogeneous mixture is... |
Salad Dressing |
| The "best mixed" of all mixtures is.... |
Solution |
| The smallest particle of an element that has the properties of that element is a(an)... |
Atom |
| Shorthand way of representing the chemical elements... |
Chemical Symbols |
| An alloy is a... |
Solution of Metals |
| Description of a chemical reaction using symbols and formulas ... |
Chemical Equation |
| In a solution, the substance that does not appear to be the same throughout is said to be... |
Heterogeneous |
| The simplest type of pure substance is a(an)... |
Element |
| A(an) _____ is made of two or more atoms chemically bonded together... |
Molecule |
| (T/F) The substances in a mixture are chemically combined |
F |
| (T/F) According to its makeup, matter can be classified as elements, compounds, mixtures, and solids |
F |
| (T/F) A solution is a type of homogeneous mixture formed when one substance dissolves in another |
T |
| (T/F) Water is an example of an element |
F |
| (T/F) An equation can be balanced by placing the appropriate number, called a subscript, in front of the chemical symbols or formulas |
Coefficient |
| (T/F) The basic building block of matter is the compound |
F |
| (T/F) When elements combine to form compounds, their properties do not change |
F |
| (T/F) One example of a homogeneous mixture is concrete |
F |
| (T/F) Substances in a mixture keep their separate identities and most of their own properties |
T |
| (T/F) Mixtures can be separated by simple chemical means |
F |
| (T/F) Salt and sugar are insoluble in water |
F |
| (T/F) The particles in a colloid are mixed together but not dissolved |
T |
| Matter that consists of two or more substances mixed together but not chemically combined is called a(n)... |
Mixture |
| An example of a homogeneous mixtures is... |
Stainless Steel |
| In a solution, the substance being dissolved is called the... |
Solute |
| The simplest type of pure substance is a(n) |
Element |
| The chemical formula for a molecule of nitrogen is... |
N(2) |
| Atoms that exist in nature in molecules, (pairs) are referred to as _____________ elements |
Diatomic |
| Pure substances that are made of more than one element are called... |
Compounds |
| Anything that appears on the periodic table is an element and thus a ________________ |
Pure substance |
| We classify substances based on it's ___________ rather than by phase |
Makeup |
| Physical combination of substances.... |
Mixture |
| Substances in a mixture may change in __________________ |
Physical appearance |
| Substances in a mixture retain most of their own ______________ |
Properties |
| Substances within a mixture can be separated by _____________ means |
Physical |
| Substances within a mixture can be present in ______________ |
Any Amount |
| Two types of mixtures are ______________________ |
Heterogeneous and Homogeneous |
| Fog is an example of a _____________ |
Colloid |
| A foam is a colloid made up of two physical states mixed together; ________________ |
Gas in Liquid |
| A gel is a colloid made up of two physical states mixed together; _________________ |
Liquid in Solid |
| A substance that dissolves in another substances is said to be _____________ |
Soluble |
| A substance that doesn't dissolve in another substance is said to be ____________ |
Insoluble |
| The chemical symbol "Al" stands for... |
Aluminum |
| The chemical symbol "Cr" stands for... |
Chromium |
| The chemical symbol "Ca" stands for... |
Calcium |
| The chemical symbol "Mg" stands for... |
Magnesium |
| The chemical symbol "Ne" stands for... |
Neon |
| The chemical symbol "K" stands for... |
Potassium |
| The chemical symbol "Pb" stands for... |
Lead |
| The chemical formula "H2O" stands for... |
Water |
| The chemical formula "H2O2" stands for... |
Hydrogen Peroxide |
| The chemical formula "CO2" stands for... |
Carbon Dioxide |
| The chemical formula "CO" stands for... |
Carbon Monoxide |
| The chemical formula "O3" stands for... |
Ozone |
| The chemical formula "C6H12O6" stands for... |
Sugar |
Biology Lab Midterm
