Biologia e Química
12th Grade
•18 Qs
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Biologia e Química
Quiz
•
Science
•
12th Grade
•
Hard
Cibele Mariz
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18 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Qual é a massa molecular do composto de fórmula Ca(OH)2? (Ca=40u, O=16u, H=1u)
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Qual é o número atômico da espécie que possui a seguinte distribuição eletrônica:
1s2 2s2 2p6 3s2 3p6 4s2 3d5
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A distribuição eletrônica do cátion bivalente de X é 1s2 2s2 2p6.
Qual o número atômico de X?
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Um elemento Z, cuja massa atômica é 23u possui a distribuição eletrônica dada por 1s2 2s2 2p6 3s1.
Qual o número de nêutrons de Z?
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A distribuição eletrônica do ânion monovalente de Y é 1s2 2s2 2p6 3s2 3p6.
Quantos elétrons possui Y?
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
C2Hx possui massa molar 28g/mol. Qual o valor de x?
(C=12u, H=1u)
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
O esquema representa o último orbital da camada L de um elemento, e possui 5 elétrons. Quais são os números quânticos para o elétrons de diferenciação?
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