Elements
This element is represented by the symbol O.
What is oxygen?
H₂O is the formula for this common Earth substance.
What is Water?
The process of a liquid turning into a gas.
What is Evaporation?
This type of bond is formed by the sharing of electron pairs between atoms.
What is a covalent bond?
This scale measures the acidity of a solution.
What is the PH scale?
This element, with the symbol 'Au', is often used in jewelry.
What is Gold?
NaCl is the chemical formula for this kitchen supply.
What is Table Salt?
This law states that mass is neither created nor destroyed in a chemical reaction.
What is the Law of Conservation of Mass?
This type of bond is formed when one atom gives an electron to another, creating positive and negative ions.
What is an ionic bond?
This term is a substance that speeds up a chemical reaction but isn't consumed in said reaction.
What is a catalyst?
This element is the most abundant metal in Earth's crust.
What is aluminum?
C₆H₁₂O₆ is the chemical formula for this simple sugar.
What is Glucose?
This type of reaction involves the exchange of ions between two compounds.
What is a double replacement reaction?
This rule states that atoms usually bond in such a way that they each have eight electrons in their valence shell.
What is the octet rule?
This is the main gas found in Earth's atmosphere.
What is Nitrogen?
This noble gas has the atomic number 2.
What is Helium?
H₂SO₄ is the chemical formula for this strong acid used in batteries.
What is Sulfuric Acid?
This type of reaction occurs when a more reactive element displaces a less reactive element from its compound.
What is a single replacement reaction?
This type of bonding is described as a sea of shared electrons that move freely around metal ions.
What is a metallic bond?
This number, 6.022 × 10²³, is known as Avogadro's number.
What is the number of particles in a mole?
This element is essential for strong bones.
What is Calcium?
This compound, CH₄, is the main component of natural gas.
What is Methane?
This type of reaction occurs when a compound breaks down into two or more substances.
What is a decomposition reaction?
This theory explains the shapes of molecules based on the repulsion between electron pairs around an atom.
What is the VSPER theory?
This describes a reaction that releases energy to its surroundings, usually in the form of heat or light.
What is an exothermic reaction?