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Chapter 22: Problem 63

Give the chemical formula for (a) copper(II) carbonate, (b) carbon monoxide, (c) magnesium hydrogen carbonate, (d) lithium acetylide, (e) carbon tetrafluoride.

Short Answer

Expert verified
(a) CuCO₃, (b) CO, (c) Mg(HCO₃)₂, (d) Li₂C₂, (e) CF₄

Step by step solution

01

(a) Copper(II) carbonate

Copper(II) means that the copper ion has a +2 charge. Carbonate is a polyatomic ion with the formula CO₃²⁻. To form a neutral compound, we need one copper(II) ion to pair with one carbonate ion. So the chemical formula for copper(II) carbonate is CuCO₃.
02

(b) Carbon monoxide

Carbon monoxide is a covalent compound composed of one carbon atom and one oxygen atom. The prefix "mono-" means one, indicating that there is one oxygen atom. So, the chemical formula for carbon monoxide is CO.
03

(c) Magnesium hydrogen carbonate

Magnesium is in group 2 of the periodic table and forms +2 ions (Mg²⁺). Hydrogen carbonate, also known as bicarbonate, is a polyatomic ion with the formula HCO₃⁻. To form a neutral compound, we need one magnesium ion to pair with two hydrogen carbonate ions. So the chemical formula for magnesium hydrogen carbonate is Mg(HCO₃)₂.
04

(d) Lithium acetylide

Lithium is in group 1 of the periodic table and forms +1 ions (Li⁺). Acetylide is the ion of the compound acetylene (C₂H₂) with two hydrogen atoms removed, leaving the ion C₂²⁻. To form a neutral compound, we need two lithium ions to balance the charge of one acetylide ion. So the chemical formula for lithium acetylide is Li₂C₂.
05

(e) Carbon tetrafluoride

Carbon tetrafluoride is a covalent compound composed of one carbon atom and four fluorine atoms. The prefix "tetra-" means four, indicating that there are four fluorine atoms. So, the chemical formula for carbon tetrafluoride is CF₄.

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