
Propriedades e Composição da Pirita e Ouro
Interactive Video
•
Chemistry, Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Ethan Morris
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química da pirita?
Ag
Cu
Au
FeS2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Por que a pirita é chamada de 'ouro de tolo'?
Porque é um metal precioso
Porque é usada para fazer joias
Porque é frequentemente confundida com ouro
Porque é mais valiosa que o ouro
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual propriedade do ouro é usada para diferenciá-lo da pirita?
Condutividade
Dureza
Cor
Maleabilidade
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece quando uma pepita de ouro é pressionada entre os dentes?
Ela se deforma
Ela se quebra
Ela muda de cor
Ela permanece igual
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a composição química da pirita?
AgCl
CuSO4
FeS2
Fe2O3
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