Physical Properties of Matter
The amount of space an object takes up.
What is Volume?
This unexpected visual occurrence often indicates a new substance has formed during a chemical reaction, such as when rust turns iron reddish-brown.
What is an unexpected color change?
A chemical property that describes how easily a substance burns or catches fire in the presence of oxygen.
What is flammability?
A pure substance made of only one type of atom that cannot be broken down into simpler substances by chemical means.
What is an element?
These elements are shiny, good conductors of heat and electricity, and make up most of the periodic table.
What are metals?
This physical property describes how easily a substance allows heat or electricity to pass through it.
What is conductivity?
Seeing bubbles form when mixing baking soda and vinegar is evidence that this was produced.
What is a gas?
A chemical property describing how easily a substance reacts with oxygen, moisture, or acid to break down, such as iron rusting.
What is reactivity?
The smallest unit of an element that retains all the chemical properties of that element.
What is an atom?
Located on the far right side of the periodic table, these elements are generally dull, brittle, and poor conductors.
What are nonmetals?
Calculated as mass divided by volume, this property determines whether an object will sink or float in water.
What is density?
Unlike a physical change, a chemical change is usually very difficult or impossible to do this to.
What is reverse
Unlike physical properties, chemical properties can only be observed when a substance undergoes this process.
What is a chemical change
Hydrogen and oxygen combine in a 2-to-1 ratio to form water, making water an example of this, rather than an element.
What is a compound?
Elements located along the "zigzag line" (staircase) that share properties of both metals and nonmetals.
What are metalloids?
You scrub the tarnish off an old silver spoon until it shines, while a piece of charcoal next to it remains dark and dull. Name the physical property you are observing when comparing how shiny or dull these surfaces are.
What is luster?
A solid that forms and settles out of a liquid mixture during a chemical reaction.
What is a precipitate?
The ability of a substance to cause harm or damage to a living organism when ingested or absorbed.
What is toxicity?
This gas is the most abundant element in the Earth's atmosphere, making up about 78% of the air we breathe.
What is nitrogen?
Metalloids are often called "semiconductors" because of their ability to conduct electricity under specific conditions, making them ideal for use in this type of technology.
What are electronics?
Copper is pulled into thin, flexible electrical wires, while gold is pounded flat into paper-thin foil. Name the two distinct physical properties demonstrated by these manipulations.
What are ductility (drawn into wires) and malleability (pounded flat)?
When you mix calcium chloride powder with water in a sealed beaker, the temperature spikes rapidly and the beaker feels hot to the touch. Name the specific type of chemical reaction occurring that releases thermal energy to its surroundings.
What is an exothermic reaction
Over time, a polished silver coin reacts with sulfur compounds in the air to form a dark, dull layer on its surface that cannot simply be wiped away. Name this specific chemical property that describes a metal's tendency to react slowly with surrounding gases and lose its shine.
What is tarnishing?
The shorthand 1- or 2-letter abbreviation used to represent an element, such as O for oxygen or Na for sodium.
What is a chemical symbol?
What are the elements the farthest right of the periodic table called?
What is Noble gases?