15. Which of the following atoms will form an lonic bond? A two hydrogen (H) ato

Question

15. Which of the following atoms will form an lonic bond? A two hydrogen (H) atoms B. two oxygen (O) atoms one carbon (C) and four hydrogen (H) atoms D. one sodium (Na) and one chlorine (CI) atom 16. Which of the following atoms will form a nonpolar covalent bond? A. one oxygen (O) and two hydrogen (H) atoms 8. two oxygen (O) atoms C. one sodium (Na) and one chlorine (CI) atom bond is formed between equally electronegative atoms, which equally share electrons. Aln) bond is formed between atoms that differ in their electronegativity, which unequally share 17. A(n) electrons A. polar covalent; nonpolar covalent B. hydrogen; ionic C. nonpolar; polar D. ionic; hydrogen 18. Hydrogen bonds are A. B. C. D. individually strong, but collectively weak. indlividually stronger than a single covalent bond individually weak, but collectively strong. individually stronger than a double covalent bond. 19. Most t of the properties of water that make life possible, such as its liquid nature at most temperatures that support life, its expansion upon freezing, its ability to serve as a transport medium, and its ability to take up heat without changing its temperature quickly, can be attributed to A. ionic bonding. B. polar covalent bonding. C. its polarity. D. hydrogen bonding. The bonds between water molecules make water a very unique compound. Molecules of water are meaning they stick to each other A. adhesive B. hydrophilic C. hydrophobic D. cohesive 20. 21. Sodium chloride is dissolved in a beaker of water. The water in this situation is called a The sodium chloride is called a A solution; salt B. dissolver; disolvee C. solvent; solute D. solute; solvent ions. A basic solution contains an excess oflons. 22. An acidic solution contains an excess of A. hydrogen (H"); hydroxide (OH B. hydroxide (OH); hydrogen(H') C. hydrogen (H"):hydroxide (OH) 19

Explanation / Answer

1. One sodium and one chlorine atom will form an ionic bond. Ionic bond formed by transfer of an electron that creates ions in NaCl the sodium ion transfer its electron to the chlorine atom and this creates a sodium cation and chlorine anion. Answer is D

2. Two oxygen atoms will form a non covalent bond.in non polar covalent bond molecules the electrons are evenly distributed. Answer is B

3.A non polar bond is formed between two atoms of same elements ,the electrons shared equally between two atoms.A polar bond where the electrons forming the bond are unequally distributed. Answer is C

4.Hydrogen bonds are individually weak but collectively strong.answer is C

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