14 Students are given a solid sample and asked to determine whether the sample is
an element, compound, or mixture. One
student observes that the sample is:
• made up of particles of different
colors, sizes, and shapes
• some particles are softer than
others
• some shine while others appear dull
What can the students conclude about
their sample?
F It is an element.
G It is a compound.
H It is a homogeneous mixture.
J It is a heterogeneous mixture.

Using the periodic table, complete the table to describe each atom. type in your answers

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl+4h2o enter the elemental symbol. view available hint(s) is reduced

Can someone me with 6 to 10 plz this is for masteries test.