
Elementos Químicos
Science
9th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o símbolo químico do elemento Oxigênio?
O
Ox
O₂
O₃
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química da água?
H₂O₂
H₂O
HO₂
H₂
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a ligação química que envolve a transferência de elétrons entre átomos?
Ligação covalente
Ligação iônica
Ligação metálica
Ligação de hidrogênio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do dióxido de carbono?
CO
CO₂
C₂O
C₂O₂
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o número atômico do elemento Carbono?
6
12
14
16
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal característica de uma ligação covalente?
Transferência de elétrons
Compartilhamento de elétrons
Formação de íons
Formação de cristais
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do sal de cozinha (cloreto de sódio)?
NaCl
KCl
Na₂Cl
NaCl₂
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