Aromatic hydrocarbons contain at least how many benzene rings in their molecules?
Aromatic hydrocarbons must contain at least one benzene ring in their structure, which gives them their unique stability and properties.
739.85 + 5003 ÷ 24.99 × 69.999 = ?
63.89% of 549.68 – (739.87 ÷ 5.34) = ? × 11.89
√2025.12 × √256.03 + √399.89 ×√(?) = 33.99 × 40.12
(70.03 ÷ 3.03 × 12.02) ÷ 35.03 × 20.02 × 8.08 = ? × (9.09 2.02 – 1.01)
? = 26.08 + 18.99 × 25.07
45.1298% of (14.032 - 75.98) + 27.87% of √40001 = 449.98% of 24.098 - ?
1240.04 – 360.18 + 449.98 ÷ 15.06 = ?
√323.89 × (3.20) ÷ 9.02 =?
20.11% of 179.99 + √120.97 ÷ 11.02 = ?
√3601 × √(224) ÷ √102 = ?