
prova_1E_leis ponderais
Science
1st Grade
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se 4g de gás hidrogênio reage com 32g de gás oxigênio a massa de água formada de acordo com a reação:
32g
4g
8g
36g
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A lei de Lavosier contida nas leis ponderais é denominada de lei...
das proporções múltiplas das massas
das proporções fixas das massas
da conservação das massas
da constante molar.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antoine-Laurent Lavoisier
é considerado
O maior cientista espanhol
Pai da Química Moderna
O cientista que descobriu a radioatividade
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As substâncias iniciais de uma reação química denominam-se...
Reagentes
Produtos
Quociente
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual será o valor da quantidade de água (x)?
31
29
2
12
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Aplique a lei de conservação das massas e
calcule a massa de C:
55g
60g
0g
15g
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Após ocorrer uma reação química em um recipiente fechado, a quantidade de matéria:
aumenta
diminui
permanece constante
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