Substâncias elementares, substâncias compostas e misturas
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Isabel Lopes
Used 59+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H3PO4 é?
Uma substância elementar.
Uma mistura de substâncias.
Uma substância composta.
Nenhuma das anteriores.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4S8 é?
Uma mistura de substâncias.
Uma substância elementar.
Uma 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
Classifica a substância
Substância composta
Misturas de substâncias
Substância bem-disposta
Substância elementar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que são Substâncias Compostas?
São formadas por elementos químicos do mesmo tipo.
São formadas por mais do que um tipo de elemento químico.
São materiais constituídos apenas por oxigénio.
São formadas por Água do mar.
6.
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
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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