Retrieving Copper
Vocabulary
Balancing Equations
2D
Misc
100
Copper Oxide and Hydrochloric Acid.
What were the two liquid solutions that we used in the retrieving copper lab?
100
what is the definition of reactants?
The starting substance in a chemical reaction.
100
Is this equation balanced: Sn+2HF2---->SnF2+H2
YES!
100
What feature of diamonds structure may account for its property as a hard riged substance and one that can scratch most other materials?
The chemical bonds are tightly bonded together.
100
Find the molar mass of Nitrogen with the atomic weight of 14.01
14.01 x 6.02 x 10^23
200
What did we use to wash the solid copper several times?
Distilled Water
200
What does the coefficients represent in the chemical equations?
The relative number of units of each species.
200
Is this equation balanced: SiO2+C--->SiC+CO
NO! -___-
200
Why is it that only diamond can cut diamond?
Diamond is the hardest material known.
200
In an equation, where would the super script be located in relation to the number?
Below the number.
300
What temperature do we heat the hot plate to?
40 degrees celcius.
300
What is the equation to find out the mole count?
6.02 x 10^23
300
Balance this equation: __PbS+__O2--->__PbO+__SO2
2PbS+3O2--->2PbO+2SO2
300
What is an alloy?
A solid solution consisting of atoms and different metals.
300
in an Alkane series the prefix "meth" represents how many carbon atoms?
one.
400
What is the difference between copper metal and black copper oxide?
The copper metal doesn't react with the hydrochloric acid and the black copper oxide does.
400
What is the law of conservation of matter?
Matter is not created or destroyed in a chemical reaction.
400
Balance this equation: __Fe3+__O3--->__Fe2O2
2Fe3+2O3--->3Fe2O2
400
Electrowinning is the electrical current to transfer the gold onto what?
Steel.
400
What is the difference between a anode and a cathode?
Anode is an electrode when oxidation occurs and a cathode is an electrode when reduction occurs.
500
The products of the reaction of Copper(II)(CuO) + 2Hydrochloric Acid(HCl).
What are Copper(II) Chlroide(CuCl2) + H2O.
500
What are the steps to a chemical formula?
1. write reactant chemical formula. 2. Draw arrow. 3. write the product formulas to the right of the arrow. 4. check expression to see if balanced.
500
Balance this equation: __C3H8+__O2--->__CO2+__H2O
2C3H8+10O2--->6CO2+8H2O
500
What is an example of an allotrope
Carbon.
500
How many Protons, Nutrons, and Electrons are in Carbon?
P=6, N=6, E=6
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