Matter Matters
This is the basic building block of matter, made of protons, neutrons, and electrons.
What is an atom?
This term describes a property like reactivity or flammability, where the substance's identity changes.
What is a chemical property?
In one molecule of H2O, there are exactly this many atoms of Oxygen.
What is one?
These are the starting substances in a chemical reaction that go through a change.
What are reactants?
During digestion, your teeth provide this kind of change to food.
What is a physical change?
This type of matter consists of two or more different elements that are chemically bonded together, such as H2O
What is a compound?
Crushing an aluminum can into a ball or shaping foil are examples of this type of change
What is a physical change?
A molecule of Carbon Dioxide (CO2) contains a total of this many atoms.
What is three? (1 Carbon + 2 Oxygen)
An ice pack that decreases in temperature is an example of this type of process
What is endothermic?
These biological catalysts in the body cause chemical changes to food during digestion.
What are enzymes?
These are substances that are not chemically combined and can be either heterogeneous or homogeneous.
What is a mixture?
This occurs when bubbles are produced, a precipitate forms, or a new odor appears.
What is a chemical change?
This is the chemical formula for a molecule containing 2 iron atoms and 3 oxygen atoms.
What is Fe2O3?
This law states that matter is never destroyed or created, and the mass of the products must equal the mass of the reactants.
What is the Law of Conservation of Mass?
This chemical, found in the stomach, is responsible for chemical changes during digestion.
What is hydrochloric acid?
There are 118 different types of these organized on the Periodic Table.
What are elements?
Because it can be dissolved in water, the solubility of salt is considered this type of property.
What is a physical property?
The formula Na3C6H5O7 contains this many different elements.
What is four? (Sodium, Carbon, Hydrogen, Oxygen)
A hand warmer increasing in temperature is an example of this type of process.
What is exothermic?
This is the name of the chemical equation where glucose and oxygen react to produce energy, water, and carbon dioxide.
What is cellular respiration?
This is the correct chemical symbol for the element Carbon.
What is C?
When iron combines with oxygen to form rust, it has undergone this specific type of change.
What is a chemical change?
On the reactants side of the cellular respiration equation C6H12O6 + 6O2 , there are this many total atoms of Oxygen.
What is 18? (6 from glucose + 12 from the oxygen molecules)
This specific phase change occurs when a substance goes directly from a solid to a gas.
What is sublimation?
In the cellular respiration equation, these two substances are the products.
What are carbon dioxide and water? (Energy/ATP is also produced)