Atividade ligações iônicas e estequiometria
Quiz
•
Chemistry
•
2nd Grade
•
Medium
CRISTINA CRISPIM
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9 questions
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1.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Compostos iônicos são capazes de conduzir corrente elétrica quando...
estão no estado sólido
estão em solução aquosa
estão fundidos
estão no estado gasoso
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
É um composto iônico a estrutura apresentada em?
Na
HF
CH4
MgCl2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A ligação iônica ocorre por meio...
compartilhamento de elétrons
perda e ganho de elétrons
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A escrita de Ca2+ significa a representação de?
átomo neutro
cátion
ânion
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
De acordo com a equação química: MgCl2+ X NaF → 2 NaCl + MgF2. Qual o valor de X?
0
1
2
3
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual o valor da constante de Avogadro?
6,02x1023
6,02x1022
6,0x1021
6,0x1020
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Mol é definido como?
quantidade de átomos
quantidade de moléculas
quantidade de matéria
8.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Considere a reação: 2NaOH + H2SO4 → Na2SO4 + 2H2O. Considere que foram utilizados 0,5 mol de NaOH, qual a quantidade de Na2SO4 produzido?
0,25
0,5
0,75
1,0
9.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sabendo que H = 1 g/mol e O = 16 g/mol, qual a massa molar da água?
17
18
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