KT.Oksiidid (hapnikuühendid)

Passage
•
Science
•
8th Grade
•
Easy
Taisi Hiie-O'Connor
Used 3+ times
FREE Resource
9 questions
Show all answers
1.
OPEN ENDED QUESTION
5 mins • 20 pts
Kuidas saadakse laboris hapnikku? Kuidas seda kogutakse? (4p)
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2.
OPEN ENDED QUESTION
15 mins • 20 pts
Kirjuta oksiidide nimetused. (8p)
a) CaO
b) Al2O3
c) Cl2O7
d) Na2O
e) CuO
f) SO2
g) FeO
h) CO
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3.
OPEN ENDED QUESTION
15 mins • 20 pts
Koosta oksiidide valemid. (8p)
a) dilämmastikoksiid ............................. b) kaaliumoksiid ...........................
c) kroom(III)oksiid ............................... d) ränidioksiid ..............................
e) vask(I)oksiid ................................. f) magneesiumoksiid ....................
g) berülliumoksiid ............................ h) raud(II)oksiid ............................
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4.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Missugused ained tekivad peamiselt kütuste põlemisel?
CO2
HCl
SO3
P4O10
5.
FILL IN THE BLANK QUESTION
3 mins • 20 pts
Kuidas on võimalik puhast hapnikku kindlaks teha? (2p)
6.
OPEN ENDED QUESTION
15 mins • 20 pts
Koosta valem, kui aine koosneb järgmistest oksüdatsiooniastmetes elementide aatomistest. (4p)
a) alumiinium ja kloor (-I) .............................. b) raud (II) ja hapnik .........................
c) lämmastik (-IV) ja vesinik ......................... d) süsinik (IV) ja hapnik ....................
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7.
OPEN ENDED QUESTION
15 mins • 20 pts
Kirjuta ja tasakaalusta reaktsioonivõrrandid (16p)
a) kaalium + hapnik --> kaaliumoksiid
b) kroom + hapnik --> kroom(III)oksiid
c) vesinik + hapnik --> divesinikmonooksiid
d) lämmastik + hapnik --> lämmastikdioksiid
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8.
DRAW QUESTION
3 mins • 1 pt
Tee joonis hapniku kogumise kohta (2 erinevat viisi). 4p

9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kui palju on õhus hapnikku? (2p)
78%
21%
0,8%
0.03%
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