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Chemistry
2nd Grade
10 Questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(UFMG) Colocando-se um frasco de ácido clorídrico junto a outro de amônia e retirando-se as rolhas de ambos, nota-se a formação de fumaça branca intensa, constituída de cloreto de amônio (HCl + NH3 → NH4Cl).
Esta experiência é um exemplo de:
síntese.
decomposição.
reação de substituição.
reação de dupla troca.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique a equação Química a seguir: CaO + CO2 → CaCO3:
Decomposição
Adição
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique a reação química a seguir: AgNO3 + NaCl → AgCl + NaNO3
Dupla troca
Simples troca
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique a reação química a seguir: Zn + 2 HCl → ZnCl2 + H2
Dupla troca
Simples troca
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique a reação química a seguir: C12H22O11 → 12 C + 11H2O
Adição
Decomposição
Neutralização
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifique o tipo de reação
AB + C → AC +B
DUPLA TROCA
SIMPLES TROCA
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Nas transformações químicas, novas substancias são formadas e denominadas de:
Reagente
Produtos
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