What do H-sentences indicate on chemical labels?
Hazards associated with a chemical substance.
Hazard Labels - H-sentences,
Indicate chemical hazards or risks.
Which hazard types do hazard symbols cover?
Explosive, flammable, oxidizing, pressurized, harmful, environmentally hazardous, long-term health hazardous, corrosive, and toxic substances.
Hazard Labels - P-sentences
Specify safety precautions.
What three elements are required for fire to occur?
Fuel, ignition temperature, and oxygen are required for fire.
Fire extinguishing methods
Remove fuel, oxygen, or heat.
How can a fire be extinguished?
By removing fuel, removing or smothering oxygen, or cooling below ignition temperature.
First aid for splashes
Rinse skin >=10 min with water.
Scientific investigation steps
Question, hypothesis, plan, observe, conclude, reflect.
Laboratory safety symbols
Explosive, flammable, toxic, corrosive, etc.
Balancing microscopes
Adjust focus, light, and stage position.
Test your knowledge with 10 questions on Science Laboratory Vademecum.
1. What distinction correctly describes H-sentences and P-sentences on chemical hazard labels?
2. What do H-sentences indicate in chemical hazard labeling?
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