CÁLCULOS QUÍMICOS
Quiz
•
Chemistry
•
1st - 6th Grade
•
Hard
Fernando Santana
Used 19+ times
FREE Resource
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O número de átomos de cálcio em uma amostra de 400mg é
6,0.1021
6,0.1023
6,0.1022
6,0.1024
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O número de mol presente em 1kg de glicose( C6H12O6) é aproximadamente igual a:
7
8
6
4
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A massa molecular do composto acima é :
60u
50u
70u
71u
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O número de moléculas presentes em um comprimido de 100mg de AAS é:
3,3.1020
3,3.1021
3,6.1020
6,3.1020
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual a massa, em gramas, presente em 2,4.1024 moléculas de água?
7,2
6
12
72
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quanto átomos existem em uma barra de ferro de 5,6kg?
6,0.1023
6,0.1024
6,0.1025
1,2.1024
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