1QAT1 QI SE LIGA
Quiz
•
Chemistry
•
10th Grade
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A fórmula correta para o iodeto de potássio, segundo a IUPAC, é?
IK
KClO
KI
MnK
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Assinale os conjuntos de produtos químicos que tenham álcalis...
NaOH, TiO2, KMnO4
NaCl, K2Cr2O7, HCl
Hidróxido de amônio, acetato de chumbo IV, hidróxido de potássio
Cloreto de potássio, acetato de amônio, ácido nítrico
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ao procurar por sulfato de sódio num almoxarifado de produtos químicos, procuramos por um recipiente que tenha qual fórmula no rótulo?
NaOH
Na2SO4
NaClO
KCl
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quando se tem 500 g de fosfato de cobre II, tem-se quantos moles desta substância?
1,0
2,0
1,50
1,97
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Os coeficientes para reação são, respectivamente:
Na2CO3 + C +N2→ NaCN + CO
1, 1, 4, 1 e 1
1, 2, 1, 2 e 3
1, 1, 2, 2 e 1
1, 4, 1, 2 e 3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quantos kg de aluminato de potássio existem em 15 moles desta substância?
1,47
4,8
0,4
1,6
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Ao queimar completamente o etanol, C2H6O, verificou-se que se produziram 15 moles de água. Isso quer dizer que reagiram quantos moles de etanol?
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