Use the experimental results to match each of the unknown compounds numbered below with one of the chemical formulas given below. (Use each
number only once.)
A student performed an experiment to classify and identify four unknown
compounds based on various properties. The student recorded the following
data
Experimental Results
Test
Blue
Litmus
Paper
Test
stays
blue
Red
Unknown
Compound State Solubility Conductivity Litmus
Paper
Test
1 1 solid
slightly does not
soluble (s)
stays
conduct red
2. solid slightly
soluble (s)
conduct
stays
red
3
turns
(ag)
conducts
blue
4
liquid very soluble
(aq) conducts stays
red
stays
blue
liquid very soluble
(
stays
blue
turns red
Compound 1
Compound 2
Compound 3
Compound 4
CH
HCI
Ο Ο Ο Ο
Ο Ο Ο Ο
Ca(OH).
Ο Ο Ο Ο
Ο Ο Ο Ο
Pbli

What neutral atom is isoelectronic to mn+4

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

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?