Lab Safety
Why should you always tie your hair during a lab?
May pose as a fire hazard while working with hazardous chemicals.
This type of substance usually tastes bitter, and has a slippery feel.
A base!!
What are the four types of matter?
Solid, Liquid, Gas and Plasma.
What is the density of salt water.
1.02g/L
H+ ions are also called...
Hydrogen Ions
When detecting the odor of an unknown substance, you should never inhale deeply; instead, use this technique called...
Wafting!
This is a common household product that is an acid, and is citric and used in cooking/drinks.
Lemon Juice
This state of matter has a fixed volume but changes its shape to match the container it fills.
Liquid
What is negative buoyancy how does it differ from positive buoyancy?
Negative buoyancy means an object is below the surface while positive means the object is above the surface of a specific substance.
Hydroxide Ions are best represented by the chemical symbol...
OH-
Regardless of how minor an injury, a cut, or a chemical spill is, this is the very first person you must notify...
A Teacher/Lab Supervisor!
This is a common substance used to indicate a substance's pH?
Cabbage Juice.
This state of matter has no fixed shape and no fixed volume, expanding completely to fill any container.
Gas.
What is buoyancy?
Buoyancy is the tendency of an object to float in a substance.
OH- (aq)
This piece of safety equipment is primarily used by the instructor or another individual if a person's clothing catches fire.
A fire blanket!
When you mix an acid and a base together, they cancel each other out in this type of chemical reaction.
Neutralization
In this specific state of matter, particles are packed tightly together and can only vibrate in place.
Solid
What is the density of regular tap water.
1.00g/L
This specific number represents a perfectly neutral pH, which is the pH of pure water.
7
Where should chipped glass instruments be disposed of?
In special glass disposal containers, NEVER a trash can.
This powdery kitchen ingredient bubbles fiercely when you mix it with acidic vinegar.
Baking Soda/Sodium Bicarbonate
This type of matter is made out of charged particles and ions.
Plasma.
An egg does not float in regular tap water, but floats in salt water, why is that?
Salt water has a higher a density, rather than regular tap water by a difference of 0.02g/L, making the egg float in salt water rather than tap water.
What is acid-base neutralization? What are the two main products that are resulted from such reaction?
Is a reaction where an acid and base are added to make a pH of 7, and the two products made from these reactions are salt and water.