lab saftey
where is the fire extinguisher located?
the front left of the room
what is H?
hydrogen
Is the rust on an old truck the result of a chemical or physical change?
chemical
What is left out of the electronegativity trend
noble gasses
Is a group vertical or horizontal?
Vertical
what is the off position for the gas valves?
pointed away from each other.
What is Mg?
magnesium
Is cooking a steak a physical or chemical change?
chemical.
Which element has the most Metal Reactivity
Francium
Where are the alkali metals found?
what is the fume hood used for?
to ventilate dangerous fumes we don't want to breathe.
what is Sn?
tin
Is blending a smoothie a chemical of physical change?
physical.
where do the trend arrows point for Atomic radius
left and down
Where is the S block?
Groups 1-2.
how do you use the emergency shower?
pull the lever and stand under it.
what is Sb?
antimony
What are the signs of a chemical change?
The product is something completly new.
Which element has the highest melting point?
Carbon.
Where is the D block?
groups 3-12
what is used to start the bunsen burner?
What is Ta?
Tantalum
what are the signs of a physical reaction?
does not become a fundamentally different substance.
where do the arrows point to show the trend of metal reactivity?
left and down
metalloids