
Quiz sobre Química e Mol
Quiz
•
Chemistry
•
4th Grade
•
Practice Problem
•
Hard
Ana Formiga
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade usada para medir a quantidade de matéria em química?
Grama
Litro
Mol
Molécula
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor aproximado do número de Avogadro?
3,14 × 10²³
6,022 × 10²³
9,81 × 10²³
1,00 × 10⁶
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que significa dizer que temos "1 mol" de moléculas de água?
Que temos exatamente 1 litro de água.
Que temos 6,022 × 10²³ moléculas de água.
Que temos 1 kg de água.
Que temos 1 molécula de água.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dessas quantidades corresponde a aproximadamente 1 mol de partículas?
12 g de carbono-12
1 g de hidrogênio molecular (H₂)
180 g de glicose (C₆H₁₂O₆)
Todas as alternativas estão corretas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se tivermos 2 mols de átomos de oxigênio (O), quantos átomos temos?
3,011 × 10²³
6,022 × 10²³
1,204 × 10²⁴
2,408 × 10²⁴
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se você pesa 18 g de água (H₂O), quantos mols de água há nessa amostra? (Massa molar da água = 18 g/mol)
0,5 mol
1 mol
2 mol
6,022 × 10²³ mol
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se você tem 3 mols de gás oxigênio (O₂), quantas moléculas de O₂ há na amostra?
6,022 × 10²³
1,806 × 10²⁴
3,011 × 10²³
9,033 × 10²⁴
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