Из 3,405 г металла получено 3,805 г его оксида. Определите металл.

  1. хром
  2. железо
  3. алюминий
  4. таллий

📝 Detailed explanation

3,405/х = 3,805/х+8
х = 68,1
Предположим валентность металла III.
68,1 * 3 = 204,3 -> это таллий
11 / 30 (37%)
Question 11 of 30
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Химия»

This topic contains 30 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Биология»

View all collections and topics in Биология

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email