Intro to Chemistry
What is the study of the composition, structure, and properties of matter and the changes it undergoes called?
Chemistry
What is the smallest unit of an element that still has that element's properties called?
An atom
Which change of state takes place when a liquid turns into a solid?
Freezing
What are the vertical columns of the periodic table called, where elements share similar properties?
Groups (families)
What is the capital of Louisiana?
Baton Rouge
What branch of chemistry studies substances and processes in living things?
Biochemistry
What type of pure substance is made of two or more different elements chemically bonded together?
A compound
What state of matter has a definite volume but takes the shape of its container?
A liquid
What type of element is a good conductor of heat and electricity, and is malleable and ductile?
A metal
At the 94th Academy Awards, which actor walked onstage and slapped Chris Rock during the presentation for Best Documentary Feature?
Will Smith
What type of research was Roy Plunkett doing when he accidentally discovered Teflon® from an "empty" gas cylinder?
Basic research
Iron melts at 1538°C whether you have 5 grams or 5 kilograms of it. What type of property is melting point, since it doesn't depend on the amount of matter present?
An intensive property
Burning wood to form ash and gases creates brand-new substances. What type of change is this?
A chemical change
Granite is not uniform throughout. What type of mixture is this?
A heterogeneous mixture
Which team won the FIFA World Cup in 2022?
Argentina
What stage of the research process focuses on actually producing and using a product that improves quality of life, often lagging years behind the original discovery?
Technological development
Oxygen gas (O2) is made of two atoms bonded together. Therefore it is classified as a(n) ____________ instead of a compound.
element
Dissolving sugar in water makes it seem to disappear, but it's all still there — just spread throughout the water. What type of change is this?
A physical change
What type of element has properties of both metals and nonmetals, with conductivity between the two — which is why it's used in computer chips?
A metalloid
What name is singer Stefani Germanotta better known by?
Lady Gaga
A scientist studies why a molecule glows under UV light, just out of curiosity (Stage 1). Another scientist uses that finding to design a glow-in-the-dark safety paint (Stage 2). A factory mass-produces that paint for hardware stores (Stage 3). Name each stage to the vocab word it represents, in order.
Basic research, applied research, technological development
A student says, "This sample has more mass, so it must have a higher density." What piece of information is the student missing that would actually let them calculate density correctly?
Volume
In the equation mercury(II) oxide → mercury + oxygen, what law guarantees the total mass of the reactant equals the total mass of the products?
Law of conservation of mass
Element X is a poor conductor of electricity and shatters when struck with a hammer. Element Z is an excellent conductor of both electricity and heat. What part of the periodic table does each element most likely belong to? (two answers, one for x one for z)
X = nonmetal; Z = metal
Which branch of the U.S. armed forces used the slogan, "It's not just a job, it's an adventure."?
U.S. Navy