Scientific Literacy and Lab Safety
The most important lab safety rule.
What is always follow your teacher's instructions and directions exactly?
The base metric unit of volume.
What is the liter?
A substance made up of only one type of atom.
What is an element?
What determines the identity of an element.
What is the atomic number (number of protons)?
What the "2" in MgCl2 indicates.
What is the number of chlorine atoms?
An educated guess about a possible solution to a probem.
What is a hypothesis?
The factor of the prefix centi-.
What is 1/100th (10-2)?
The type of change when gas burns in a car.
What is a chemical change?
A charged atom.
What is an ion?
The name of a binary ionic compound containing fluorine and lithium.
What is lithium flouride?
The curved surface of a liquid in a graduated cylinder.
What is the meniscus?
The factor of the prefix kilo-.
What is 1000 (103)?
Matter that has definite volume but no definite shape.
What is liquid?
The effective mass of electrons.
What is zero?
The chemical formula for a compound containing potassium and sulfur in a 2:1 ratio.
What is K2S?
In a graph, this is the variable on the x-axis.
What is the independent variable?
The amount of millimeters (mm) in 0.42 meters.
What is 420 mm?
The definition (or fundamental properties) of matter.
What is something with volume and mass?
The number of valence electrons the most reactive metals tend to have.
What is one or seven?
The number of hydrogen atoms in a molecule of (NH4)3PO4 (ammonium phosphate)?
What is twelve?
What is a line graph?
The volume (in centiliters (cL)) of 1.46 L of water.
What is 146 cL?
The phase change in which a substance changes directly from a solid to a gas.
What is sublimation?
The most reactive nonmetal.
What is fluorine (F)?
The products of a double replacement reaction involving hydrochloric acid (HCl) and sodium hydroxide (NaOH).
What are sodium chloride (NaCl) and water (H2O)?