Classify each solid as amorphous, molecular, network covalent, alloy or ionic. a) Steel ______________________ b) CO 2 ______________________ c) Graphite ______________________ d) CaCO 3 ______________________ e) Bronze, an alloy of Cu and Sn ______________________

Classify each solid as amorphous, molecular, network covalent, alloy, or ionic. Alright. So we're gonna start out with steel. Now steel can be seen as an upgraded version of iron. It is a combination of iron mixed in with some carbon atoms. The carbon atoms help to make it stronger. Because of this, steel is a good example of an alloy. Next, we have CO 2, carbon dioxide. It is made up of only nonmetals. Carbon dioxide exist in a gaseous form because its melting point is pretty low. That tells us it's a molecular compound and not a network covalent compound. Network covalent compounds tends to have higher melting points because of the intricate connections within those substances. So here this would be molecular. Graphite, which is a form of carbon, this is the more common form of carbon. Another form is pretty expensive and that's diamonds. Both graphite and diamonds are examples of network covalent solids. They have extensive networks of carbon atoms that connect in pretty intricate ways that strengthen the substance overall. Next, we have calcium carbonate. So here that's calcium which is a positive ion connected to a carbonate which is a negative ion. So this is an example of an ionic compound. And then finally, the last one, I kind of give it away. I say bronze, which is an alloy of copper and tin. So we know that bronze is an alloy from the description. So out of the choices given, these are each of their descriptions in terms of the type of solid, that they represent.

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1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

8. Gases, Liquids and Solids

Atomic, Ionic and Molecular Solids

GOB Chemistry

8. Gases, Liquids and Solids

Atomic, Ionic and Molecular Solids

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Multiple Choice

Classify each solid as amorphous, molecular, network covalent, alloy or ionic.
a) Steel
b) CO₂
c) Graphite
d) CaCO₃
e) Bronze, an alloy of Cu and Sn __

alloy, molecular, network covalent, ionic, alloy

alloy, molecular, molecular, ionic, ionic

ionic, molecular, network covalent, ionic, alloy

ionic, network covalent, molecular, alloy, ionic

alloy, network covalent, molecular, alloy, ionic

network covalent, molecular, molecular, alloy, ionic

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Verified step by step guidance

Identify the type of solid for steel. Steel is a mixture of iron and carbon, and sometimes other elements. It is classified as an alloy because it is a combination of metals.

Determine the type of solid for CO2. Solid CO2, known as dry ice, consists of discrete molecules held together by intermolecular forces, classifying it as a molecular solid.

Classify graphite. Graphite is composed of carbon atoms arranged in layers with strong covalent bonds within the layers and weaker forces between them, making it a network covalent solid.

Examine CaCO3. Calcium carbonate is composed of calcium ions and carbonate ions held together by ionic bonds, classifying it as an ionic solid.

Identify the type of solid for bronze. Bronze is an alloy made primarily of copper and tin, which are metals mixed together, classifying it as an alloy.