Chemistry, 07.02.2021 21:50 barbaramathews1123
Iron is a metal. The structure of iron is described as a lattice of positive ions in a sea of
electrons. Which of the following statements about iron are correct?
1 iron conducts electricity because the electrons are free to move
2 iron has a high melting point due to the strong covalent bonds
3 iron is an alloy
4 iron is malleable because the layers of atoms can slide over one another
A. 1 only
B. 1 and 3
C. 1 and 4
D. 2, 3 and 4
Answers: 3
Chemistry, 21.06.2019 15:50
Which of these reactions are redox reactions? check all that apply.cd + hcl → cdcl2 + h2cucl2 + na2s → 2nacl + cuscaco3 → cao + co2 2zns + 3o2 → 2zno + 2so2 ch4 + 2o2 → co2 + 2h2o
Answers: 3
Chemistry, 22.06.2019 19:00
Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
Answers: 1
Chemistry, 22.06.2019 23:00
What does a numerical subscript following an element in a chemical formula mean?
Answers: 1
Iron is a metal. The structure of iron is described as a lattice of positive ions in a sea of
elect...
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