Chemical Reactions
A sign of a chemical reaction could be a change like this: blue to purple
what is a color
I am used to measure liquid volume accurately
what is a graduated cylinder?
I am essential for pencils, though I am not lead.
What is carbon?
this woman won Nobel Prizes for work on radioactivity.
Who is Marie Curie?
In sunscreen, compounds such as zinc oxide and titanium dioxide primarily work by interacting with this part of sunlight.
What is ultraviolet radiation?
This gas is often produced when an acid reacts with a metal.
What is hydrogen?
I am used to transfer small amounts of liquid, drop by drop.
What is a pipette?
I am names after a planet and used in nuclear power.
What is uranium?
This scientist is known for the atomic theory of matter.
Who is John Dalton?
The “rising” of bread dough is caused by yeast producing this gas during fermentation.
What is carbon dioxide?
in this type of reaction, a substance loses electrons.
what is oxidation?
I am used to heat substances in the lab
What is a Bunsen burner?
I make up much of the air, but plants need me less than oxygen.
What is nitrogen?
This civilization is credited with developing one of the earliest large-scale methods for glassmaking.
What is Ancient Egypt?
The sour taste in many citrus fruits comes primarily from this weak acid.
What is citric acid?
when methane burns in oxygen to produce CO2 and water, this type of reaction occurs
Why is combustion?
This tool is commonly used in titrations to dispense measured volumes of solution with high precision.
What is a burette?
I am the only nonmetal that is liquid at room temperature, and am a halogen.
What is bromine?
This invention made it much easier to separate and identify components in mixtures in modern chemistry labs.
What is chromatography?
This class of molecules has both a hydrophilic end and a hydrophobic end, allowing soaps and detergents to clean greasy surfaces.
What are surfactants?
A reaction that absorbs energy from its surroundings is described by this term.
This piece of glassware is preferred for mixing chemicals by swirling without spilling and is often used in titration setups.
What is an Erlenmeyer flask?
I am the heaviest naturally occurring noble gas.
What is radon?
This branch of early chemistry mixed science with mysticism and aimed to turn base metals into gold.
What is alchemy?
Stainless steel resists corrosion largely because it contains this element.
What is chromium?