Melting Point/Boiling Point
True/False: All pure substances have a melting and boiling point.
True
These types of physical properties do not depend of the amount of matter present.
What are intensive?
These are the two types of physical changes.
What are reversible and irreversible?
This is the name for the heart/center of the atom.
What is the nucleus?
In the middle of a reaction diagram, this symbol is used to separate the two sides.
What is an arrow?
True/False: The Melting Point and Freezing Point of a substance are the same thing.
True
These physical properties do depend on the amount of matter present.
What are extensive?
Water vapor condenses into liquid around a cold glass. Physical or chemical change?
Electrons hang out here.
What is the electron cloud?
(will not accept just "cloud")
This side of the reaction lists the products.
What is right?
Sodium has a melting point of 98 and a boiling point of 883 degrees Celsius. This is its state of matter is sodium at 800 degrees Celsius.
What is liquid?
Malleability is an example of this type of property.
What is physical?
What is chemical?
(RIP big guy)
These are usually gases at room temperature.
What are non-metals?
The burning of hydrogen gas in the presence of oxygen gas produces water and becomes very hot to the touch. Is this an exothermic or endothermic reaction?
Exothermic.
Beryllium has a melting point of 1287 and a boiling point of 2970 degrees Celsius. This is its state of matter at -100 degrees Celsius.
What is solid?
Something has the ability to react violently with water. That ability is this type of property.
Name ONE of the four pieces of evidence for a chemical change.
Temp change, color change, gas production, precipitate formation
These are usually great conductors.
What are metals?
Vinegar (C2H4O2) and sodium bicarbonate (NaHCO3) react to produce sodium acetate (NaC2H3O2) and water (H2O). This is the chemical reaction diagram.
What is
C2H4O2 + NaHCO3 ---> NaC2H3O2 + H2O ?
Neon has a melting point of -416 and a boiling point of -410 degrees Celsius. This is its state of matter at -404 degrees Celsius.
What is gas?
Iron exists as a solid at room temperature. Intensive or extensive physical property?
Intensive (MP and BP do not change with more or less substance)
A phase change is this type of physical change.
What is reversible?
This man was the first to create a table of the elements.
Who is Mendeleev?
Diphosphorus pentoxide (P2O5) is produced when elemental phosphorus (P) and oxygen gas (O2) react. This is the chemical reaction diagram.
P + O2 ---> P2O5