Azotas Amoniakas Azoto rūgštis
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Jelena jelenasuskevic@rambler.ru
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kad užbaigtų išorinės energijos lygį, azoto atomas turi priimti:
2 elektronus
3 elektronus,
4 elektronus,
5 elektronus
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Azoto molekulės struktūrinė formulė gali būti pavaizduota:
N = N
N - N
N ≡ N
N2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Su kuriuo iš metalų kambario temperatūroje reaguoja azotas:
natriu,
kalciu
kaliu
ličiu.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Azotas laboratorijoje gaunamas:
skaidant amonio nitratą
skaidant amonio nitritą
distiliuojant skystą orą
visi pateikti atsakymai teisingi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Azotas yra svarbiausias biogeninis elementas, nes:
organizmo audinių ląstelės yra sudarytos iš baltymų, kurių yra azotas
jis yra nitratų pavidalu ir organiniai junginiai, kurie ateina su maistu
būtini kvėpavimo ir degimo procesams.
kaupiasi augalų šaknyse
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amoniako molekulės struktūra:
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vandeninis amoniako tirpalas turi terpę:
rūgštinę
šarminę
neutralią
teisingo atsakymo nėra.
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