Vocabulary
What is the center of an atom called?
What is the nucleus?
What is the smallest unit of an element?
What is an atom?
What is a mixture where different parts are visible?
What is a heterogeneous mixture?
What are vertical columns in the periodic table called?
What are groups or families?
Rusting of iron
What is a chemical change?
What is the purpose of coefficients in a chemical equation?
What is to show the number of molecules in the reaction?
What are the negatively charged particles that orbit the nucleus?
What are electrons?
What subatomic particle has a positive charge?
What are protons?
Define a pure substance.
What is a substance with a fixed composition?
What are the elements in group 1 known as?
What are alkali metals?
Melting ice
What is a physical change?
What do subscripts in a chemical formula represent?
What is the number of atoms of each element in a molecule?
What term describes a substance made of two or more different elements chemically bonded together?
What is a compound?
Where are protons and neutrons located in an atom?
What is the nucleus?
How does a homogeneous mixture differ from a heterogeneous one?
What is a homogeneous mixture has a uniform composition throughout and a heterogeneous mixture consists of visibly different substances.
Where are nonmetals located on the periodic table?
What is on the right side?
Is solubility a chemical or physical property?
What is physical property?
How do you know if a chemical equation is balanced?
What is if the number of each type of atom is the same on both sides?
What is the term for the number of protons in an atom?
What is the atomic number?
What distinguishes an element from a compound?
What is that an element is made of one kind of atom, while a compound is made of two or more different atoms?
What property distinguishes a compound from a mixture?
What is a compound is chemically bonded together and a mixture is not.
Which group of elements in the periodic table is known for having full outer electron shells and being inert?
What are the noble gases?
Toxicity is a...?
What is chemical property?
What is the Law of Conservation of Mass?
What is matter cannot be created or destroyed in a chemical reaction?
What is the term for the electrons in the outer shell of an atom?
What are valence electrons?
How many electrons makes an element stable (HINT: Full outer shell)?
What is 8 electrons?
Provide 2 ways mixtures can be separated.
What is filtering, sifting, distillation, by hands, chromatography?
What element has 26 protons and is well-known for being a key metal in construction and manufacturing?
What is iron (Fe)?
What is the main difference between physical and chemical properties?
What is physical properties can be observed without changing the substance, while chemical properties can only be observed when a substance undergoes a chemical change?
Balance the equation: H₂ + O₂ → H₂O.
What is 2H₂ + O₂ → 2H₂O?