
Matek és kémia
Authored by Zoltan Beke
Mathematics, Chemistry
7th Grade
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik ez a vegyjel?
5. periódus, V. A főcsoport
Nb (nióbium)
Sb (antimon)
As (arzén)
Ca (kalcium)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mi az a kovalens kötés?
A molekula jele ami megmutatja a molekulában való kötéseket és a molekula alakját.
Olyan semleges kémiai részecske amelyben az atomokat kovalens kötés tartja össze.
Az atomok közös elektronpárral kialakult kapcsolata.
A molekula jele ami megmutatja hogy milyen atomokból és hányból áll.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik molekulának van háromszoros kovalens kötése?
Nitrogén molekula
Klór molekula
Hidrogén molekula
Oxigén molekula
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mennyi 73?
235
21
107
343
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
12
6
3
72
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mikor nehéz egy fém?
Ha a sűrűsége nagyobb mint
5g/cm3
Ha egy mol tömege nagyobb mint 30 g
Ha a sűrűsége kisebb mint
5g/cm3
Nem tudom
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hány darab FÉLFÉM van?
7
9
13
8
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