Prevention/Proper dress
What is Mr. Munjar responsible for providing when we have a lab day?
He is responsible for providing safety goggles, gloves (if needed), and aprons (if needed).
What is safety treatment used for?
To get rid of or protect yourself from physical or chemical harm. or to cleanse your body in case of emergency.
What is the scientific method?
scientific method is a procedure that is six steps establishing facts through testing.
What unit is energy measured in?
Joules
What does it mean if one a chemical is insoluable?
It doesn't dissovle in watter. It's solid in water.
What is the appropriate attire to have on a lab day?
Pants-long pants
Shirt-w/sleeves
Footwear-clothes toe shoes
Hair-must be up
Hats- not worn
jewelry-not worn
What are the safety treatments?
Fire extinguisher-small or medium fires
Fume hood-remove and contain gases from labs
shower-washes away chemicals from body and clothes
Eye wash-flush out chemicals from eyes
Fire blanket-small bench fires or people on fire
What are the scientific method steps?
1.Observation/Question
2.Research topic area
3.Hypothesis
4.Test with experiment
5.Analyze data
6.Report conclusion
If a product of a chemical reaction comes warmer, it is called?
EXOTHERMIC
How can you tell if there is a gas formation occuring in a chemical reaction?
If it smells different,bubbled start to form or a ballon will inflate if put over it.
What is unacceptable to have on a lab day?
Pants-short outfit
Shirt-tank top/shirtless
Footwear-barefoot/High heels/thin slippers
Hair-hair gel/ hair spray/ loose long hair
Hat- facing forward w/ full brim
Jewelry-loose and dangling
What scenarios are you going to be using the safety treatment?
You will only be using these safety treatments in case of a emergency.
How does the scientific method apply to everyday life?
It applies to everyday life by seeing how nature works.
What prefix do scientist put in front of the energy,since the base unit is so small?
kilo,k in order to get kilojoules . (KJ)
Is there a chemical reaction when you mix red and yello?
No but theres a color change just not a change in composition of paint.
Why are the safety treatments in the classroom?
to protect us from danger
The energy need for a reaction to occur is called?
Activation energy
What is a chemical reaction?
When two cubstances are mixed adn the atoms within substances are reaaranging and being joined together. Also new physical and chemical properties as well as chemical formula is produced
What are the four basic rules to remember when we have a lab?
safety goggles-(must be worn over eyes at all times in lab area)
No horseplay-(no running, no pushing, no goofing off in the lab area)
No unapproved experiments-(follow procedures and no mystery chemicals)
No eating/Drinking-(Eat before lab begins,keep drinks and food out of lab)
What are the steps for using safety treatment?
Fire extinguisher-PULL,AIM,SQUEEZE,SWEEP
Fume hood-Flip switch
Shower-Turn on and stand underneath
Eye wash-turn water on and place eye underneath
Fire blanket-
open box from top down
2.pull out and open it up
3.”calmly” cover the fire
4.get rid of heat.turn off source
5.leave it alone and let cool down.
How can the scientific method help solve problems?
It can help solve problems by establishing 6 steps that will help you figure out answers .
If ∆Hrx is negative, I can predict that the beaker the reaction took place in will be
hot, warm, warmer than before, hotter than before.
How is a product of chemical reaction different from a mixture?