1. Which three of the following industries are classified as secondary industries: (a) beverages
(b) financial services,
(c) fishing,
(d) power utilities,
(e) publishing, and
(f) transportation?
2. Ferrous metals include which two of the following:
(a) aluminum,
(b) cast iron,
(c) copper,
(d) nickel,
(e) gold, and
(f) steel?
3. Which of the following elements is the most important alloying ingredient in steel:
(a) carbon
(b) chromium
(c) nickel
(d) molybdenum
(e) vanadium
4. The refractory metals are noted for which four of the following properties:
(a) good hot hardness
(b) high density
(c) high elastic modulus
(d) high melting points
(e) low melting points
(f) low stiffness
(g) low strength
5. A ceramic material can be defined as an organic compound consisting of a metal or semimetal and one or more nonmetals:
(a) True
(b) false
6. Which one of the following materials are not ingredients in the new ceramics:
(a) carbides
(b) nitrides
(c) oxides
(d) silicates

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback