
Задачи върху халогенна група
Quiz
•
Computers
•
University
•
Hard
Feika Karan
Used 4+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Кой химичен елемент е в седма А група ?
сяра
водород
хлор
натрий
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Какъв е цвятът на хлора?
жълто-зелен газ
жъртозерлана течност
червено - кафява течност
тъмно виолетово твэрдо вещество
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Каква информация носи следният химичен знак 4 Ca²-?
четири атома калций
калциев атом
два атома калции
четири полужителни калциеви йона
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Как се чете следната химична формула Na2 S ?
натриев хидрид
ди натриев сулфид
ди натриев сулфат
натриев оксид
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Какво е процес неутрализация?
взаимодействие на основа със сол
взаимодействие на киселина със основа
взаимодействие на оксид с киселина
взаимодействие на киселина с метал
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Къде са записани правилно химичните знаци на елементите азот, калий, флуор и мед?
N, Сa, Fe, C ;
N,K, F, C;
Na, Сa, F , Cu;
N, K, F , Cu
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Къде са означени правилно химичните формулите на следните съединения; Натриева основа , солна киселина и готварска сол?
HCl, NaCl .NaOH
NaOH, HCl, NaCl
NaOH, HCl, Na2O;
CH4, NaOH, HCl
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