Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom.
1. Electrostatic interaction is important for which type of bond?
A. ionic bond
B. triple covalent bond
C. single covalent bond
D. double covalent bond
2. When an atom gains or loses valence electrons and becomes charged, it is known as a(n) _____.
A. covalent bond
B. attraction
C. ion
D. neutral
3. When an atom loses electrons, its charge becomes _____.
A. neutral
B. positive
C. negative
D. indeterminate
4. When an atom gains electrons, its charge becomes _____.
A. positive
B. neutral
C. negative
D. indeterminate
5. An atom that has lost electrons and has become positively charged is called a(n) _____.
A. anion
B. covalent bond
C. cation
D. valence electron
6. An atom that has gained electrons and has become negatively charged is called a(n) _____.
A. covalent bond
B. valence electron
C. cation
D. anion
7. Three dimensional networks made by cations and anions surrounding each other are --
A. ionic solids
B. ionic liquids
C. single covalent bonds
D. double covalent bonds
8. Strong attractive forces that keep atoms connected together are called _____.
A. valence electrons
B. chemical bonds
C. cations
D. anions
9. Which of the following is NOT a type of bonding that occurs between atoms?
A. covalent bonding
B. metallic bonding
C. ionic bonding
D. All of these are types of bonding that occurs between atoms
10. A discrete unit of atoms that are bonded together is a(n) _____.
A. electron
B. anion
C. molecule
D. cation
11. A covalent bond is a bond between atoms that --
A. are all metals
B. have a shared pair of electrons
C. have different electrical charge
D. all of the above
12. How many electrons are shared between atoms in a double covalent bond?
A. one
B. two
C. four
D. six
13. How many electrons are shared between atoms in a triple covalent bond?
A. one
B. two
C. four
D. six
14. When electrons are shared unequally in a molecule, the result is --
A. an ionic bond
B. a polar covalent bond
C. a non-polar covalent bond
D. no bonding occurs
15. An atom's ability to draw bonding electrons to itself is called --
A. equal change distribution
B. covalent bonding
C. electronegativity
D. ionic bonding
16. When an atom in a molecule is more electronegative than the other atoms, this causes --
A. unequal charge distribution
B. the molecule to be non-polar
C. no equal change distribution
D. no polarity in the molecule
17. Which scientist assigned values for the electronegativity of atoms?
A. Bohr
B. Pauling
C. Einstein
D. Aristotle
18. Which of the following is the most electronegative atom?
A. hydrogen
B. francium
C. fluorine
D. oxygen
19. A molecule such as H2, in which equal sharing of electrons occurs, is called _____.
A. non-polar
B. polar
C. a cation
D. ionic
20. On the periodic table, electronegativity increases --
A. down a group
B. going from the left to the right
C. going from the right to the left
D. going from the top to the bottom
1. A
2. C
3. B
4. C
5. C
6. D
7. A
8. A
9. D
10. A
11. B
12. B
13. C
14. A
15. D
16. C
17. C
18. A
19. B
20. B
Why don't you put your answer at the end of EACH question? That way we can look at the question and the answer. As you've done it we must read the question, scroll to the end to find the answer, scroll back to the top for the other choices, back to the bottom to confirm the ansswer etc. It's a never ending cycle and takes far too much time for 20 questions. Also, while your at it, break the posts up. Most of the time I will pass up a 20 question post because it takes too much time to answer for a single answer.
1,2,3,4,5 are correct.
I don't agree with 8 and 10.
6,7,9 are ok.
20 is ok.
I don't agree with 19
The answers to 16 don't make sense. A and C appear to be the same but with a typo
I disagree with answers to 17 and 18.
11 is ok.
I don't agree with 12,13,14,15
Also, while your at it, break the posts up.
Bad English.
Also, while you're at it, break the posts up into smaller bits, preferably no more than 2-3 per post. That way a person who has just a little time can answer a post that would not have time to answer one with 20 questions.
Of course! I'll go through each question and explain the correct answers.
1. Electrostatic interaction is important for which type of bond?
The correct answer is A. ionic bond. Ionic bonds are formed by the attraction between positively and negatively charged ions, which are held together by electrostatic forces.
2. When an atom gains or loses valence electrons and becomes charged, it is known as a(n) _____.
The correct answer is C. ion. When an atom gains or loses valence electrons, it becomes charged and is called an ion.
3. When an atom loses electrons, its charge becomes _____.
The correct answer is B. positive. When an atom loses electrons, it has more protons than electrons, leading to a net positive charge.
4. When an atom gains electrons, its charge becomes _____.
The correct answer is C. negative. When an atom gains electrons, it has more electrons than protons, resulting in a net negative charge.
5. An atom that has lost electrons and has become positively charged is called a(n) _____.
The correct answer is C. cation. Cations are formed when atoms lose electrons and acquire a positive charge.
6. An atom that has gained electrons and has become negatively charged is called a(n) _____.
The correct answer is D. anion. Anions are formed when atoms gain electrons and acquire a negative charge.
7. Three-dimensional networks made by cations and anions surrounding each other are --
The correct answer is A. ionic solids. In ionic solids, cations and anions are arranged in a three-dimensional lattice structure.
8. Strong attractive forces that keep atoms connected together are called _____.
The correct answer is B. chemical bonds. Chemical bonds are the forces that hold atoms together, creating molecules or compounds.
9. Which of the following is NOT a type of bonding that occurs between atoms?
The correct answer is D. All of these are types of bonding that occurs between atoms. Covalent bonding, metallic bonding, and ionic bonding are all types of bonding that occur between atoms.
10. A discrete unit of atoms that are bonded together is a(n) _____.
The correct answer is C. molecule. A molecule is a discrete unit of atoms that are bonded together.
11. A covalent bond is a bond between atoms that --
The correct answer is B. have a shared pair of electrons. In a covalent bond, atoms share a pair of electrons.
12. How many electrons are shared between atoms in a double covalent bond?
The correct answer is B. two. In a double covalent bond, two pairs of electrons (four electrons in total) are shared between atoms.
13. How many electrons are shared between atoms in a triple covalent bond?
The correct answer is C. four. In a triple covalent bond, three pairs of electrons (six electrons in total) are shared between atoms.
14. When electrons are shared unequally in a molecule, the result is --
The correct answer is B. a polar covalent bond. In a polar covalent bond, electrons are shared unequally, leading to a partial positive charge on one atom and a partial negative charge on the other.
15. An atom's ability to draw bonding electrons to itself is called --
The correct answer is C. electronegativity. Electronegativity is the measure of an atom's ability to attract and hold electrons in a chemical bond.
16. When an atom in a molecule is more electronegative than the other atoms, this causes --
The correct answer is A. unequal charge distribution. When an atom in a molecule is more electronegative, it attracts the bonding electrons more strongly, leading to an unequal charge distribution within the molecule.
17. Which scientist assigned values for the electronegativity of atoms?
The correct answer is B. Pauling. Linus Pauling assigned values for the electronegativity of atoms.
18. Which of the following is the most electronegative atom?
The correct answer is C. fluorine. Fluorine is the most electronegative atom on the periodic table.
19. A molecule such as H2, in which equal sharing of electrons occurs, is called _____.
The correct answer is A. non-polar. In a non-polar molecule, electrons are equally shared between atoms.
20. On the periodic table, electronegativity increases --
The correct answer is B. going from the left to the right. Electronegativity increases as you move from left to right across a period in the periodic table.