Phases/States of Matter
This state of matter has weak bonds, the particles slide past one another.
What is a liquid?
The smallest unit of matter
What is an atom?
How many elements are in the compound CO₂?
2: Carbon and Oxygen.
Oxygen dissolves in water so that fish can breathe. This is an example of what?
What is solubility?
Identify as an element, compound, or mixture: Krypton
What is an element?
This state of matter has high energy, no bonds and the particles move freely.
What is a vapor (gas)?
Two or more elements chemically combined.
What is a compound?
Which element is in a gas that we use to breathe and helps to make the compound water?
What is oxygen?
During a demonstration in class, dry ice sank to the bottom of a beaker, while regular ice floated. Why?
What is density?
Identify as an element, compound, or mixture: Air
What is a mixture?
This state of matter has strong bonds, low energy and the particles vibrate in place.
What is a solid?
A pure substance located on the periodic table.
What is an element?
How many atoms are in the compound C₆H₁₂O₆?
24: 6carbon + 12hydrogen + 6oxygen
Insects are able to run across a lake without sinking because of this property of water.
What is surface tension?
Identify as an element, compound, or mixture: Water
What is a compound?
Water turning to ice.
What is freezing?
Water vapor changing to water.
What is condensation?
What elements are found in NH₃?
What is nitrogen and hydrogen?
Plants bring water from their roots to their leaves because of this property.
What is capillary action?
These instruments are used to measure volume.
What is a beaker and graduated cylinder?
Water changing to water vapor.
Dry ice changing to carbon dioxide gas.
What is sublimation?
The chemical formula for water?
What is H2O?
The strong bond between the same kind of molecules.
What is cohesion?
Based on the investigations we did in class, if we can’t see the particles in matter, how do we know they exist?
Particles have weight and take up space.