Verificando o Módulo 3
Quiz
•
Chemistry
•
1st Grade - University
•
Hard
Profa. Química
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um químico necessita usar 0,35 mol de alumínio para um experimento. Que massa, em gramas, deve ser utilizada?
Dado: Al: 27u
9,45
8,45
9,55
7,45
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a massa molecular dos compostos: H2O; CO2; NaCl e K2CO3?
Dado: H: 1 u; O: 16 u; C: 12 u; Na: 23 u; Cl: 35,5 u; K: 39 u
16 u; 42 u; 54,5 u; 138 u
18 u; 28 u; 58,5 u; 158 u
18 u; 44 u; 58,5 u; 138 u
17 u; 28 u; 58 u; 37 u
16 u; 42 u; 54 u; 37 u
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Em um parafuso foram usados 0,10 mol de ferro. Qual a massa, em gramas, desse objeto?
Dado: Fe = 56 u
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Uma dúzia representa 12. Uma centena representa 100. 1 mol representa qual valor?
6,02 x 1023
6,2 x 1023
7,02 x 1021
6,02 x 1022
6,2 x 1021
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a nomenclatura correta para os compostos inorgânicos NaCl, H2SO4, AgNO3 e KOH?
cloreto de sódio; sulfeto de hidrogênio; nitrito de prata e hidrato de potássio.
clorato de sódio; sulfato de hidrogênio; oxido de prata e hidróxido de potássio
cloreto de sódio; ácido sulfúrico; nitrito de prata e hidrato de potássio.
cloreto de sódio; ácido sulfúrico; nitrato de prata e hidróxido de potássio
clorato de sódio; sulfato de hidrogênio; nitrito de prata e hidróxido de potássio
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Qual o nome do composto N2O4?
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual a fórmula correta para os compostos: ácido perclórico, ácido clórico, ácido cloroso e ácido hipocloroso?
HClO4; HClO2; HClO3 e HClO
HClO; HClO3; HClO2 e HClO4
HClO; HClO2; HClO3 e HClO4
HClO4; HClO3; HClO2 e HClO
HClO4; HClO; HClO2 e HClO3
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