5.2 Chemistry
- 401. What is a chemical reaction?
- 402. How does the type of bond influence chemical behavior?
- 403. How does resonance increase stability?
- 404. Why are ionic compounds brittle?
- 405. How does bonding determine material hardness?
- 406. Why do nonpolar molecules dissolve in nonpolar solvents?
- 407. Why do polar molecules dissolve in polar solvents?
- 408. How does molecular shape affect boiling point?
- 409. Why are metals malleable and ductile?
- 410. How does hybridization explain carbon’s versatility?
- 411. How does bonding explain conductivity?
- 412. What are crystal field splitting patterns?
- 413. What is crystal field theory (basic idea)?
- 414. How does bonding affect chemical reactivity?
- 415. What is structural isomerism?
- 416. What is bond dissociation energy?
- 417. Why are triple bonds shorter than double bonds?
- 418. What are multiple bonds?
- 419. Why do elements in the third period show expanded octet?
- 420. What is hypervalency?
- 421. How does hybridization relate to molecular shapes?
- 422. What is octahedral geometry?
- 423. What is trigonal bipyramidal geometry?
- 424. What is tetrahedral geometry?
- 425. What is trigonal planar geometry?
- 426. What is linear geometry?
- 427. What determines the geometry of a molecule?
- 428. Why is O₂ paramagnetic?
- 429. What is paramagnetism and diamagnetism in MO theory?
- 430. What is the difference between HOMO and LUMO?
- 431. What are the types of molecular orbitals (σ, π)?
- 432. Why is He₂ molecule not stable?
- 433. What is bond order according to MO theory?
- 434. What are bonding and antibonding orbitals?
- 435. What is molecular orbital theory?
- 436. Why do smaller ions have higher lattice energy?
- 437. What factors affect lattice energy?
- 438. How does lattice energy relate to ionic bond strength?
- 439. What is lattice energy?
- 440. What is the significance of hydrogen bonding in water?
- 441. Why is hydrogen bonding stronger than other intermolecular forces?
- 442. What is hydrogen bonding?
- 443. What are London dispersion forces?
- 444. What are dipole–dipole interactions?
- 445. What are Van der Waals forces?
- 446. Why is CO₂ nonpolar but H₂O polar?
- 447. What conditions make a molecule polar?
- 448. How does molecular shape affect dipole moment?
- 449. What is a dipole moment?
- 450. What is bond polarity?
- 451. What is electronegativity?
- 452. How does bond order relate to bond strength?
- 453. What is bond order?
- 454. What is bond angle?
- 455. What factors affect bond energy?
- 456. What is bond energy?
- 457. What factors affect bond length?
- 458. What is bond length?
- 459. Which bond restricts rotation in molecules?
- 460. How do sigma and pi bonds differ in strength?
- 461. What is a pi bond?
- 462. What is a sigma bond?
- 463. What shapes are associated with six electron pairs?
- 464. What shapes are associated with five electron pairs?
- 465. How does lone pair affect bond angle?
- 466. What is the shape of a molecule with AX4 configuration?
- 467. What is the shape of a molecule with AX3 configuration?
- 468. What is the shape of a molecule with AX2 configuration?
- 469. What principle of VSEPR theory?
- 470. What is VSEPR theory?
- 471. How does hybridization explain molecular geometry?
- 472. What is d²sp³ hybridization?
- 473. What is dsp³ hybridization?
- 474. What is sp³ hybridization?
- 475. What is sp² hybridization?
- 476. What is sp hybridization?
- 477. What is hybridization?
- 478. What is valence bond theory?
- 479. What is electron delocalization?
- 480. Why do some molecules show resonance?
- 481. What is resonance?
- 482. Why is formal charge important in determining stability?
- 483. What is formal charge in Lewis structures?
- 484. How do you draw Lewis structures for molecules?
- 485. What is a Lewis dot structure?
- 486. What are the properties of metallic bonds?
- 487. What is meant by “sea of electrons” model?
- 488. Why are metals good conductors of electricity?
- 489. What is metallic bonding?
- 490. What is a coordinate covalent bond?
- 491. What are the properties of covalent compounds?
- 492. What is the difference between single, double, and triple bonds?
- 493. What is a covalent bond?
- 494. What are the properties of ionic compounds?
- 495. What conditions favor the formation of ionic bonds?
- 496. What is an ionic bond?
- 497. What are the main types of chemical bonds?
- 498. What are the limitations of the octet rule?
- 499. What is the octet rule?
- 500. Why do atoms form chemical bonds?