welcome to chemistry
Type in the name of the company you are going to have an interview with.
Pure substances vs. mixtures
Mixtures- made up of two or more different types of particles
Heterogeneous mixtures- more than one part of the mixture is visible Ex. Pizza
Homogeneous mixtures- only one part of the mixture is visible Ex. Millk
Pure substances - made up of only one type of particle
Elements - made up of only one type of atom Ex. Hydrogen
Compounds- made up of two or more different atoms bonded together Ex. Salt
Whimis
there are 10 WHIMIS safety symbols
Bohr diagram
protons are positively charge, electrons are negatively charge and nuetrons are nuetral
protons and nuetrons are found in the nuecleus and electrons are found ouside of the nuecleus
Protons, Nuetrons, electrons
the protons, nuetrons, and the electrons are in the nuecleus.
colour change, gas production, temperature change.
A chemical change is when a substance undergoes a chemical change, and it is change into a different substance with different properties.
How ambitious are you?
Disappearing puddle, Dry ice, sawing wood
What are your short-term goals ?
Type them in.
A physical changes is when somethng changes the form of a substance, but it does not change into another substance. like for example, making orange juice, the state of the juice is changed, but not the properties of it.
changes of matter
properties of matter
physical
What experience have you got from your previous jobs? Make sure you specify all your previous work experience, part-time jobs, vacation jobs, voluntary work, and unpaid work experience that are relevant for the position you are applying for.
A property that can be observed without changing the identity of the substance.
Ex. odor, density, structure, hardness, solubility
reaction with air, flamability.
Describe a typical work day in your previous/current position.
reaction with acid, reaction with base, reaction with water,
chemical
Why will/did you leave your existing/last job?
A property that can be observed only during a chemical change.
periodic table
the periodic table has 118 elements, which has metals, non- metals, and metalloids. and is organized in groups 1-18.
Naming compounds
compounds without metals
How would you describe yourself?
Type in a short description.
SO2 sulfure dioxide
use a prefix to figure out how many atoms there are
compounds with metals
What are your hobbies?
What do you like to do in your free time? What was the last film you saw or the last book you read? Think of the activities that relax you the most. Fill in several hobbies.
LiCL- Lithium chloride
first element keeps its name, second element ends in ''ide''
steps of the scientific method
Are you qualified for this position?
Interviewers will want to know whether or not you are able to do the job.
Answer the questions from this section and see if you are the right person for this position.
we use the scientific method to help us to understand how to do a science experiment.
6. Conclusion- make a conclusion of what the experiment is about.
5. Result- analyze the observations
What is the most compelling reason you should be hired?
4. procedure- carry out the experiment
What can you do for this job that other candidates can't? Why?
3. Materials- the equipments that we need to do the experiment
Which qualities were easily observed by your colleagues and/or your former/existing boss?
Type them in.
2. Hypothesis- an educated guess of what we think might happen.
What are your weaknesses?
Examples:
stubbornoverly critical, can't accept authoritytoo demandingtoo talkativetoo quiettoo sensitivelacking assertivenesslacking social tact
1. purpose- the question that we are asking or the reason for the experiment.
What strengths qualify you for this job?
Example:
ambitiousgood communicatorfocuseddeterminedadaptablecuriousoptimisthard workerhonestpoliteco-operativeself motivatedenthusiasticgood leaderstrategic thinkerquick learnerflexiblegood problem solver
Main topic
Lab equipments- are used to help us to perform the experiment and to do them in the correct way so that there isn't too much or less of something that would result in consequenses.
Research the company
You should find and learn as much as you can about the company where you are having an interview.
The interviewer will want to see what you know about them and why you chose the company.
Doing your homework will show that you are really interested.
Clay triangle- used for heating a crucible evenly over a bunsen burner
Clay triangle
Glass stirring rod- to mix chemicals
Glass strirring rod
Funnel- pour liquids into a small opening filtering
Funnel
Thermometer- measure temperature/ changes with a high degree of precision
Thermometer
Pipette- transports really small amount of liquids (drops)
Pipette
Test tube rack- holds many test tubes at once, drying rack
Test tube rack
Test tube holder- lifting/ carrying hot test tubes
Test tube holder
scoopula- used for transferring small amount of granulated chemicals from jars to beakers
Scoopula
Ring stand- to hold the ring clamp
Ring stand
Beaker- holding/ mixing liquids, not exact amounts
Beaker
Test tubes- heat small amount of liquids or solids
Test tubes
Graduated cylinder- used to measure volume exactly, (ex. 78ml)
Graduated cylinder
mortar and pestle- crush substances into a fine paste/ powder
Mortar and pestle
Beaker tongs- lifting/ carrying/ heating beakers
Beaker tongs
Ruler- measuring length for quantitive observation
Ruler
Bunsen burner- used for heating, sterillization and combustion and is also an alternative to hot plate
What do you know about the company's main goal and vision?
Type in the answer.
Bunsen burner
Facts
crucible- used for heating/ holding chemicals that are very hot
What do you know about the history of the company?
Type in a short description.
Crucible
Apron- to protect clothing
What kind of innovations does this company have?
Type in several examples.
Apron
Ring clamp- hold glassware over a flame
What is the company's turnover for last year?
Ring clamp
Forceps- move, grasp, hold, items that shouldn't be touched and is also used in dissection
What products does this company have?
Type in several examples.
Forceps
Wire mesh with ceramic center- flame shield, hold beakers over a flame
What is the size of this company?
Wire mesh with ceramic center
Watch glass- is used to evaporate liquids, hold substances for heating/ weighing, cover for beaker
What can you do for this company that someone else can't?
Type in several unique traits that will turn you into the perfect candidate for the position.
Watch glass
Evaporating dish- used to evaporate a liquid so that we can get the solid back.
What do you know about the company?
Type a short description of the company's background.
Evaporating dish
Erlenmeyer flask- is used to measure, mix, and hold liquids in the lab.
Why do you want to work for this company?
Think of what you can do for them, not of what they can do for you.
Erlenmeyer flask
