Substâncias elementares, compostas e misturas de substâncias
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Armanda Carneiro
Used 19+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Classifica a substância
Substância composta
Misturas de substâncias
nenhuma das anteriores
Substância elementar
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H3PO4 é?
Substância elementar.
Mistura de substâncias.
Substância composta.
Nenhuma das anteriores.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observa a figura e identifica a substância
Substância elementar
Mistura de substâncias
Substância composta
Nenhuma das anteriores
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fórmulas que representam apenas substâncias elementares:
O2, N2, Br2
CO2, O2, N2
NaCl, CO2, O2
H2O, H2, Br2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entre as fórmulas: H2, H2O, CO2, O2, CaCl2, NH3, NaCl, quais indicam substâncias elementares?
H2O, CO2, CaCl2, NH3, NaCl
H2, O2
H2, H2O, O2
H2, O2, NH3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O gás ozono é um exemplo de:
substância elementar
substância composta
mistura de substâncias
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A fórmula química da sacarose, o açúcar comum, é C12H22O11. Há quantos elementos químicos diferentes nessa substância?
45
3
12
22
11
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