В каком высказывании о железе говорится как о химическом элементе?

Подготовка к тестовой части стартового контроля

Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Васильева Алексеевна
Used 3+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
железо быстро ржавеет в морской воде
кислород в клетки организма человека переносит содержащий железо белок гемоглобин
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4 атома фосфора
1 молекула фосфора
4 молекулы фосфора
1 атом фосфора
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Простым веществом является
нитрат натрия
мрамор
воздух
озон
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
98
7
50
76
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как называется вещество: CuSO3
сульфид меди (II)
сульфат меди (II)
сульфит меди (II)
карбонат меди (II)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
К какому классу веществ относится формула: NaNO3
оксиды
соли
кислоты
щелочи
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