Which records correctly use copper's chemical symbol? Select all that apply.
Copper recorded as Co
A copper wire tagged Cu✓Правильный ответ
Copper recorded as C
Copper shortened to Cp
A copper sample entered as Cu✓Правильный ответ
Объяснение
The two records using Cu are correct because Cu is the standardized identifier for copper. C and Co belong elsewhere in the symbol system, and Cp is an invented abbreviation.