Lab Safety
This essential safety equipment should be worn at all times to protect your eyes from chemical splashes and flying debris.
What are safety goggles?
This common piece of glassware is used to measure liquid volume accurately and has markings along the side.
What is a graduated cylinder?
The number 0.00345 has this many significant figures.
What are 3 significant figures?
This type of matter has a fixed shape and volume, with particles that are closely packed and vibrate in place.
What is a solid?
This group of elements is located in the far-right column of the periodic table and is known for being non-reactive gases.
What are the Noble Gases?
This SI unit is used to measure temperature and is symbolized by "K."
What is kelvin?
If you accidentally spill a chemical on your skin, you should do this immediately.
What is rinse with plenty of water and notify the teacher?
This equipment is used to hold and support a test tube over a flame, especially when heating substances.
What is a test tube clamp?
When performing this operation, you round your final answer to the least number of decimal places.
What is addition or subtraction?
This is a form of matter that contains two or more elements chemically combined in a fixed ratio, with distinct properties from the individual elements.
What is a compound?
These metals, found in Group 1 of the periodic table, are highly reactive and include elements like sodium and potassium.
This unit is used to measure mass in the SI system and is abbreviated as "kg."
What is a kilogram?
This piece of emergency equipment is used to quickly rinse chemicals from the eyes.
What is an eyewash station?
This ceramic or metal mesh is placed on a ring stand to support glassware and distribute heat evenly from a Bunsen burner.
What is a wire gauze?
The result of multiplying 4.56 and 2.1 should be rounded to this many significant figures.
What are 2 significant figures?
This type of change alters the appearance or state of matter without changing its chemical composition, such as ice melting into water.
What is a physical change?
This group of elements, found in Group 17, contains elements like chlorine and fluorine, and is known for forming salts when combined with metals.
What are the halogens?
To convert 500 milliliters (mL) to liters (L), you would divide by this number.
What is 1,000?
You should never do this in the lab, as it could lead to chemical ingestion or contamination.
What is eating or drinking?
Unlike a Bunsen burner, this lab tool provides precise heating using electric resistance instead of an open flame.
What is a hot plate?
When dividing 12.56 by 3.2, the answer should be rounded to this many significant figures.
What are 2 significant figures?
This type of change results in the formation of a new substance, such as when iron rusts after exposure to oxygen.
What is a chemical change?
This group of elements, found in Group 2, includes metals like calcium and magnesium and is known for forming basic oxides.
What are the alkaline earth metals?
Convert 350 milliliters (mL) to liters (L).
What is 0.350 L?
When heating a test tube, you should always point it in this direction to avoid injuring yourself or others.
What is away from yourself and others?
This piece of glassware is commonly used to hold and mix liquids, and although not precise for measuring, it often has a spout for easy pouring.
What is a beaker?
The measurement of a sample is 0.08000 mL, and the mass is 5.23 g. What is the density of the sample with the correct number of significant figures?
(Density = mass/volume)
What is 65.4 g/mL?
(rounded to 3 significant figures)
This type of mixture consists of visibly different substances or phases, such as a salad or a rock with mineral inclusions.
What is a heterogeneous mixture?
This periodic trend refers to the ability of an atom to attract electrons in a chemical bond and generally increases across a period and decreases down a group.
Convert 500,000 cubic centimeters (cm³) to cubic meters (m³)
What is 0.5 m³? (1,000,000 cm³ = 1 m³)