
REAÇÕES QUÍMICAS
Authored by Marins Danczuk
Chemistry
10th Grade
Used 18+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observe a reação abaixo:
NaOH + HCl --> NaCl + H2O
Quem são os REAGENTES dessa reação?
NaOH e NaCl
HCl e H2O
NaOH e HCl
NaCl e H2O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com a reação abaixo:
CaO + H2O --> Ca(OH)2
Qual(is) é(são) o(s) PRODUTO(S) da reação?
CaO
H2O
Ca(OH)2
CaO e H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Temos na imagem a representação de um ovo podre. Qual a evidência química, que nos indica que ali há uma reação química acontecendo?
Mudança de cor
Liberação de um gás
Liberação de luz
Formação de odor
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ao queimar um papel, o que seria a fumaça?
Vapor de água
Celulose
Gás carbônico
Oxigênio
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a única imagem NÃO representa uma reação química:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o único item não é um indicador de reação química?
Mudança de cor
Liberação de luz
Liberação de bolhas
Derretimento
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A decomposição química de uma substancia por corrente elétrica designa-se por:
Fotólise
Eletrólise
Pirólise
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