Show:
shocking
mix it up
small
this and that
what was left
100
A unit for measuring electric power.
What is a watt?
100
a substance that conducts an electric current.
What is an electrolyte?
100
the smallest unit of and element, having all the characteristics of that element and consisting of dense, central, positively charged nucleus surrounded by a field of negatively charged electrons.
What is an atom?
100
reduction reaction occurs at the _____ and the oxidation reaction occurs at the _____.
What is cathode , anode?
100
the part of an electrical device where the electrons enter, the negative terminal of an electrolytic device.
What is an anode?
200
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
What is an electron?
200
the substance that dissolves another to form a solution.
What is a solvent?
200
an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons.
What is an ion?
200

To purify copper metal, which electrode should the pure copper metal be?

Cathode

200
the part of an electrical device where the electrons leave. the positive terminal of an electrolytic device.
What is a cathode?
300
a device with two electrodes in contact with an electrolyte that brings about a chemical reaction when connected to an outside source of electricity.
What is an electrolysis cell?
300
a substance dissolved in another substance, usually the component of a solution present in the lesser amount.
What is a solute?
300
a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge in magnitude to that of an electron, but of opposite sign.
What is a proton?
300

State 3 metals that are less reactive than carbon but more reactive than hydrogen, in order of its reactivity

Zn

Fe
Sn

Pb

300

What are the 3 factors affecting electrolysis?

Electrochemical/Reactivity Series

Concentration of electrolyte

Type of electrodes

400
the passage of current through an electrolyte with subsequent migration of positively or negatively charged ions to the negative and positive electrodes.
What is electrolysis?
400
an act or the process by which a solid, liquid, or gaseous substance is homogeneously mixed with a liquid or sometimes a gas or a solid.
What is a solution?
400
a subatomic particle of about the same mass as a proton but without an electrical charge.
What is a neutron?
400

Which combination of electrochemical cell produce the higher voltage? Zinc and copper OR Magnesium and silver

Magnesium and silver

400

State 5 metals that are more reactive than carbon

K 

Na
Ca

Mg

Al

500
the derived SI unit of electrical potential difference between two points on a conductor carrying a current of one ampere, when the power dissipated between these points is 1 watt.
What is a volt?
500

What is the half equation at the cathode electrode of a NaCl (l) electrolyte?

Na+ + e-  -> Na

500
one millionth of a meter.
What is micro?
500

Between Zn and Cu, which metal would be the negative electrode of an electrochemical cell? Why?

Zn because it is more reactive

500

Half equations of electroplating a spoon with copper at both anode and cathode. Include state symbols

Anode: Cu (s) -> Cu2+ (aq) + 2e- (aq)


Cathode: Cu2+ (aq) + 2e- (aq) -> Cu (s)