Make an outline of the separation of the following cations into their respective groups: a. Mercury (1), barium, arsenic (II), cadmium, and sodium ions. b. Strontium, lead, chromium (III), and mercury (II) ions.
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- What are bus? How are ions formed from atoms? Do isolated atoms form ions spontaneously? To what do the termscationandanionrefer? In terms of subatomic particles, how is an ion related to the atom from which it is formed? Does the nucleus of an atom change when the atom is converted into an ion? How can the periodic table be used to predict what ion an element’s atoms will form?1. What are alums? Give examples other than potassium alum.A monoatomic anion with two charges contains 36 electrons. It is statements is false? A. Kr B. Ca2+ C. Sr2+ D. O2- E. Se2- choose all that apply 1b. Consider the reaction, 2 Al + 3 Cu2+ → 2 Al3+ + 3 Cu. The oxidizing agent is, Al Cu2+ Al3+ Cu H2O in which this reaction takes place. 1c. Which of these formulas is(are) not valid for hexane? A. C6H14 B. C6H6C. C6H16D. CH3CH2CH2CH2CH2CH3 E. CH3(CH2)4CH3
- 3. Make an outline of the seperation of the following cations into their respective groups. a. mercury (1), barium, arsenic (111), cadmium, and sodium ions. b. Strontum, lead, chromium (111) and mercury (11) ions. 3a. What is the charge on ions formed from the alkaline earth metals? b.What is the charge on ions formed by the alkaline earth metals? c.What is the charge on ions formed by the halogens? d.Identify three elements that can only form one cation? e.Identify three elements that can only form one anion f.Identify three elements that can form more than one cation g.In what region of the Periodic Table can an element form more than one cation? h.Are there any elements in this region that only form one cation?i.How do you determine the charge on the main group elements?21. Based on your understanding of the relationships between the structures and physical properties of elements and compounds, which of the substances (Table 1) is most likely a metallic element? Why? Explain your reasoning in at least two (2) sentences.
- Consider these statements about an element E in Group SA: . E is essential to life, found in bones, teeth, cell membranes, and energy-storage molecules. It is usually found in living tissue as the anion formed by one E and four O atoms. This anion is also found in many minerals. . E forms pyramidal E, molecules under standard conditions, although these molecules can also fuse with each other to form extended chains of bonded E th atoms. E has the most allotropes of any Group SA element. Among the more common forms, the soft white allotrope is dangerously flammable in air, while the harder red, violet and black allotropes are more stable. At 1 atm and room temperature, the most common form of E is a waxy white solid that glows faintly yellow-green when exposed to air x Oyes 5 Are all of these statements true about the same Group 5A element? no If you said yes, what is E? Enter its chemical symbol: 01.) An element X reacts with hydrogen to form a compound of formula HX. In which group in the periodic table is X most likely to be found? a. 1A b. 2A c. 7A d. 8A 2.) Which of the following compounds has the strongest chemical bond? a. salt b. sugar c. water d. ethanoltypically form ions with a 2+ charge .A Halogens .B Transition metals .C Alkali metals .D Alkaline earth metals
- Which of the following statements is/are true? I. Solids are compact but if melted it moves randomly. II. Diamond and graphite are examples of amorphous solids. III. Color is an intensive property. IV. Isobars are the atoms with the same A. III, IV I, III I, III, IV I, II, III, IV II, III, IV The English chemist and meteorologist who stated that the same two elements can be combined to form different compounds where each combination contains a fixed amount of both in a small whole number ratio. Chadwick Rutherford Dalton Democritus Thomson8. Naming and Empirical Formulas. Name the ionic compound formed from the following pairs of elements : (a) Magnesium and nitrogen (b) lodine and cadmium (c) Strontium and fluorine (d) Sulfur and cesium Also, Write formulas for the compounds. Show your solution (indicate charges of the elements involved in the ionic compounds)4. Give the formula and name of the compound formed by Strontium with a. Nitrogen b. Bromine C. water d. Oxygen