Lab Safety
True or false you can have food in the science lab?
False
What do we use a crockpot for in the lab?
to keep water warm
Which element has 8 Protons
Oxygen
You can see 2 or more parts ex) Soup
Heterogeneous mixture
How many atoms are in Carbon Dioxide ( CO2)
3
When in the science lab you have to wear proper safety equipment. If you have long hair what do you need to do with it?
Pull it back
Beaker?
Holds large amount of liquid
Give the symbol of the element which has 16 electrons
S
You cannot see separate parts ex) Ketchup
Homogeneous Mixture
How many atoms are in baking soda (NaHCO3)
6
What kind of behaviour should you not do in a science lab?
Running or rough housing
Test Tube?
Holds small amount of liquid
Iron has an atomic number of 26, an atomic mass of 56. How many neutrons does it have?
30
When one substance dissolves into another
Solution
What are the numbers that represent the amount of atoms in a formula called
subscripts
What do you do after a science experiment?
Clean everything up
Graduated Cylinder?
Precisely measure liquids
Which Period does strontium live in?
5
particles are large enough to sink to the bottom in the liquid
Suspension
How many oxygen atoms are in this formula
2Mg3(PO4)2
16
What happens when you spill something on your hands?
Wash your hands with soap
Erlenmeyer Flask "E Flask"?
Mixing liquids chemical reactions
How many electrons does francium have in its outer most electron shell?
7
Two or more of the same type of atom bonded together
Element / Molecule
How many atoms are in this formula
5Al2(SO4)3
85