General Chemistry
What is chemistry?
Chemistry is the study of matter.
What is the density of a piece of wood that has a mass of 25g and a volume of 29.4mL
0.85g/mL
What is the most basic unit of matter known as?
The most basic unit of matter is known as an, "Atom."
What are the four major properties of matter?
The four major properties of matter are:
Chemical properties, Physical Properties, Extensive Properties, and Intensive Properties.
How much time do you spend thinking about the Roman Empire?
Urban Dictionary explains that most men spend a great deal of time thinking about the Roman Empire.
(between the highly advanced waterproof concrete, gladiators that even Jake/Logan Paul could not stage a fight against, and unique architecture...what's not to love).
What is a compound?
A compound is any substance made of 2 or more elements with a definite composition
What is the density of sulfuric acid if 35.4mL of the acid weighs 65.14g?
1.84g/mL
What do we call a pure substance that cannot be broken down any further?
A pure substance that cannot be broken down any further is an "Element."
Which type of major property can be defined as any characteristic that can only be view when a substance undergoes a chemical change?
CHEMICAL PROPERTY
What are the two major types of mixtures?
The two major types of mixtures are heterogeneous and homogeneous mixtures.
What method of study is typically used for chemistry labs, that includes observation, hypothesis and conclusions?
Scientific Method
The density of aluminum is 1.70g/mL. What is the volume of a 244g piece of aluminum?
143.5g
Please complete the following statement:
All _______ are _______, but not all ______ are ________
All compounds are molecules, but not all molecules are compounds.
What is the major type of property that can be defined as any characteristic that can be measured without changing the chemical makeup of a substance?
PHYSICAL PROPERTY.
What is one similarity between gases and plasmas?
What is a statement that predicts the potential outcome of a study?
Hypothesis
Determine the mass of 250mL of benzene if the density of benzene is 0.8765g/mL.
219.13g
What is compound?
A compound is any combination of two or more atoms of DIFFERENT elements.
Luster, Density, Melting Point, and Color are all considered to be Intensive Properties, why is that?
Intensive Properties because they are properties that do not depend on the amount of matter present.
What is the difference between a pure substance and a mixture?
A pure substance is any substance that cannot be broken down further by physical means (such as elements and compounds)
A mixture is any substance that can be physically separated and or broken down (their constituents are not combined chemically).
What is the definition of matter, mass, and volume.
Matter is defined as anything that takes up space and has a mass.
Mass is the measurement of how much matter is in an object.
Volume is the amount of 3-dimensional space that an object takes up.
A 5.7g piece of cork is placed in a cylinder containing 40mL of water. The war rises to 63.5mL (when cork is submerged). What is its density?
0.24g/mL
What is the difference between a molecule and a compound?
The difference between a molecule and a compound is:
A molecule is any combination of two or more atoms. A compound is the combination of two or more atoms of DIFFERENT elements.
Volume, mass, acidity, and length are all examples of what specific type of major property? Why?
(two parter)
Extensive properties because they are properties that do depend on the amount of matter that is present.
Please explain why alligators are so ornery.
if you haven't seen the Waterboy with Adam Sandler, you fail.