1,001 Chemistry Practice Problems For Dummies (2014)

Part I. The Questions

Chapter 7. Covalent Bonding

In intro-level chemistry courses, most covalent compounds contain only nonmetals (elements to the right on the periodic table plus hydrogen). As with ionic compounds, the last word in the name of a covalent compound has an -idesuffix. Unlike ionic compounds, multiplying prefixes are typically present. For example, the compound S2Cl2 is disulfur dichloride, which uses the multiplying prefix di- twice. Organic compounds are another major group of covalent compounds, but they’re beyond the scope of this text.

The Problems You’ll Work On

In this chapter, you work with covalent bonding in the following ways:

check Naming compounds containing covalent bonds

check Writing formulas for covalent compounds

Note: You can go to the Appendix if you need to check the periodic table.

What to Watch Out For

Don’t let common mistakes trip you up; remember the following when working on covalent bonding:

check The names of inorganic compounds normally consist of two words.

check All simple binary compounds have an -ide suffix on the second word in the name.

check The -ite and -ate suffixes normally don’t occur in covalent compounds.

check The names of covalent compounds use multiplying prefixes, such as di-, tri-, tetra-, and penta-. The prefix mono- is rarely used anymore.

check Acids follow their own rules for naming.

Prefixes in Covalent-­Compound Names

421–430 Review the prefixes associated with covalent compounds.

421. How many atoms does the prefix di- represent?

422. How many atoms does the prefix hexa- represent?

423. How many atoms does the prefix hepta- represent?

424. How many atoms does the prefix tetra- represent?

425. How many atoms does the prefix nona- represent?

426. How many atoms does the prefix tri- represent?

427. How many atoms does the prefix mono- represent?

428. How many atoms does the prefix penta- represent?

429. How many atoms does the prefix octa- represent?

430. How many atoms does the prefix deca- represent?

Naming Covalent Compounds

431–455 Provide the name of the specific covalent compound.

431. What is the name of CO?

432. What is the name of SBr2?

433. What is the name of ICl?

434. What is the name of SO2?

435. What is the name of PCl5?

436. What is the name of XeF2?

437. What is the name of SF6?

438. What is the name of CBr4?

439. What is the name of BCl3?

440. What is the name of SiO2?

441. What is the name of AsCl5?

442. What is the name of SbCl3?

443. What is the name of SiI4?

444. What is the name of NF3?

445. What is the name of CS2?

446. What is the name of ClO2?

447. What is the name of XeO4?

448. What is the name of H2O?

449. What is the name of SeF6?

450. What is the name of S2Cl2?

451. What is the name of N2O3?

452. What is the name of P4O6?

453. What is the name of B2Cl4?

454. What is the name of BrF3?

455. What is the name of S2F10?

Writing Formulas of Covalent Compounds

456–480 Give the chemical formulas of specific covalent compounds.

456. What is the chemical formula of silicon tetrabromide?

457. What is the chemical formula of nitrogen triiodide?

458. What is the chemical formula of carbon dioxide?

459. What is the chemical formula of arsenic pentafluoride?

460. What is the chemical formula of nitrogen monoxide?

461. What is the chemical formula of sulfur trioxide?

462. What is the chemical formula of chlorine monofluoride?

463. What is the chemical formula of xenon tetrafluoride?

464. What is the chemical formula of nitrogen dioxide?

465. What is the chemical formula of carbon tetrachloride?

466. What is the chemical formula of iodine heptafluoride?

467. What is the chemical formula of phosphorus tribromide?

468. What is the chemical formula of selenium tetrafluoride?

469. What is the chemical formula of chlorine dioxide?

470. What is the chemical formula of boron trifluoride?

471. What is the chemical formula of dinitrogen pentoxide?

472. What is the chemical formula of diphosphorus trioxide?

473. What is the chemical formula of dinitrogen dichloride?

474. What is the chemical formula of tetraphosphorus decoxide?

475. What is the chemical formula of arsenic trifluoride?

476. What is the chemical formula of dinitrogen oxide?

477. What is the chemical formula of tetraphosphorus trioxide?

478. What is the chemical formula of xenon trioxide?

479. What is the chemical formula of antimony pentachloride?

480. What is the chemical formula of dichlorine heptoxide?