Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?

Give the correct formula for sodium phosphate and indicate whether it is ionic or covalent. a. NaPO4 Ionic b. Na3PO4 Covalent c. Na3PO4 Ionic d. NaHPO4 Covalent

9. Which pair of atoms would form an ionic bond? a. bromine and oxygen b. chlorine and lithium c. carbon and nitrogen d. sodium and neon e. copper and chromium 15. Using only the periodic table, place the following atoms in order of increasing atomic radius: C, Ba, 0, Ca, and Ge. 21. What types of elements are bonded together to make an ionic compound? Give three examples of ionic compounds. Identify the types of elements that make up the compound in each example. 27. Describe how the physical state of a substance at room temperature depends on the strength of the intermolecular forces between the particles of the substance.

Which of the following is an ionic compound?a. SO2B. CIO2C. H2OD. CaOE. CO2

Write the formula for the covalent compounds. Can you help me how to solve the problem with the covalent compound? step by step

When there is a reaction between each of these pairs ofatoms, ions form. Using Lewis symbols, write the reactions showing how electrons are lost or gained when theseatoms become ions.a. Na + O b. Na + S c. Si + H

12. In number 11, the subscript 2 represents what? a. The charge on OH b. The negative charge from copper. c. The positive charge from copper. d. How many copper atoms it took to fulfill the octet of hydroxide. 13. Name the following compound, CuCl2. a. Copper dichloride b. Copper (II) chlorine c. Monocopper dichloride d. Copper (II) chloride     14. Name the compound CoBr2. a. Copper dibromide b. Cobalt dibromide c. Cobalt (II) bromide d. Cobalt bromide   15. What is the chemical formula for calcium phosphate? a. Ca3P2 b. Ca3(PO4)2 c. CaPO4 d. Ca2(PO4)3 16. Which of the following substances have the weakest intermolecular force? a. A substance whose boiling point is 85 degrees. b. A substance that evaporates at 30 degrees. c. Ice d. Room-temperature corn syrup 17. The difference between intermolecular forces and intramolecular forces is that a. Intramolecular forces require more energy to break than intermolecular forces b. Intermolecular forces are bonds and intramolecular forces are…

Based on Octet rule Nitrogen most likely forms which ion. a. N2-             b. N3- c.  N6+             d. N2+

1. Which is the formula of the compound formed by barium and phosphorus? a. BaP3b. Ba2P Ba3P2c. Ba3Pd. Ba2P 2. The bond between Br atoms in a Br2 molecule is _______ and is formed by the _________ of two valence electrons. a. covalent ; sharingb. covalent; transferc. ionic ; transferd. ionic ; sharing

1. The molecule boron trifluoride, BF3, assumes a trigonal planar geometry with boron as the central atom. Which statement correctly describes the polarity of the B-F bond and the polarity of the molecule? A. The B-F bond is polar; the BF3 molecule is nonpolar. B. The B-F bond is nonpolar; the BF3 molecule is nonpolar. C. The B-F bond is nonpolar; the BF3 molecule is polar. D. The B-F bond is polar; the BF3 molecule is polar. E. The polarity cannot be determined. 2. Which of the following species will exhibit tetrahedral geometry? A. CCI4 B. CO32 - C. 03 D. PCI5 E. SF6 3. If a compound has a polar bonds, then 1. It is polar overall. II. There is an electronegativity difference between the bonded atoms. III. It is ionic. IV. It doesn't have resonance. A. Il only B. II, IV C. I, II, IV D. I, II E. All of the above statements are correct. 4. Predict the geometry and polarity of the CS2 molecule. A. linear, nonpolar B. linear, nonpolar C. tetrahedral, polar D. bent, polar E. bent, nonpolar