Concept explainers
Interpretation:
Differences between metals and non-metals has to be explained by its two chemical and physical properties.
Concept introduction:
Metals: It is an element which has the following properties: solids at room temperature except mercury, hard in solid state, good conductors of both heat and electricity, ductility, high density, malleability, high melting and boiling point, tendency to form basic oxides by reacting with oxygen, tendency to form positive ion when they looses the electron and get shiny by polishing.
Nonmetals: It is an element or substance but not metal, they have the following properties: they may exist as solid, liquid or gas at room temperature, easily breakable, bad conductors of both heat and electricity, melting and boiling points are low, when they react with oxygen they will form acidic oxides, tendency to form negative ions when they looses electron except hydrogen, which forms positive ion, compare to metals, nonmetals will look dull in nature.
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Chapter 25 Solutions
Chemistry: Atoms First
- Which of these statements are qualitative? Which are quantitative? Explain your choice in each case. (a) Sodium is a silvery-white metal. (b) Aluminum melts at 660 C. (c) Carbon makes up about 23% of the human body by mass. (d) Pure carbon occurs in different forms: graphite, diamond, and fullerenes.arrow_forwardThree samples (A, B, and C) of pure substance composed ofsodium, sulfur, and oxygen were isolated and purified. Elemental analyses showed that sample-A contained 1.62 g sodium, 1.13 g sulfur and 2.25 g oxygen; sample-B contains 1.60 g sodium,2.23 g sulfur, and 1.67 g oxygen; while sample-C contains 1.46 g sodium, 1.02 g sulfur, and 2.03 g oxygen. Determine whether A, B,and Care samples of the same or different compounds.arrow_forwardPredict the product when the two substances mix. If the reaction occurs, write the balanced chemical equation. If the reaction does not happen, write "NA" Calcium metal and water vapor.arrow_forward
- Identify an element that would have similar properties as magnesium (Mg). Explain your choice and use at least one of the vocab words.arrow_forwardChromium metal is obtained by heating chromium(111) oxide with carbon.Calculate the mass percentage of chromium metal in the oxide,and then use this value to calculate the quantity of chromium(111) oxide(in grams and in kilograms) required to produce 850kg of chromium metal.arrow_forward4. The table gives the melting points, the boiling points and the electrical properties of six substances A to F. melting point boiling point electrical conductivity electrical conductivity as a liquid substance 1°C °C as a solid -210 -196 does not conduct does not conduct B 777 1627 does not conduct good conductor 962 2212 good conductor good conductor D -94 63 does not conduct does not conduct 1410 2355 does not conduct does not conduct F 1064 2807 good conductor good conductor C.arrow_forward
- The nature of the elemental matter depends on which factor in the atom and what factors are added to the elements because of the difference of that factor?arrow_forwardList the main characteristics that an Earth material must possess to be considered a mineral and describe each. Compare and contrast the three primary particles contained in atoms. Distinguish among ionic bonds, covalent bonds, and metallic bonds.arrow_forwardThe most abundant elements in our food and drinks are oxygen, carbon, hydrogen and nitrogen. Why is it logical that these elements would be found in the food and drinks we consume?arrow_forward
- Let’s say you were doing an experiment on two different chemicals in two different test tubes. One chemical is giving off oxygen gas or hydrogen gas the other is giving off carbon dioxide gas. What one test could you do in each test tube that would prove which is giving off the oxygen or hydrogen and which is giving off the carbon dioxide?arrow_forwardGive the formula for the compound formed when sulfur trioxide reacts with water. Give the formula for the compound formed when magnesium oxide reacts with water.arrow_forwardTwo common oxides of iron are FeO and Fe2O3. Based on this information, tell how you would predict two common compounds of iron and chlorine.arrow_forward
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