Efnum má skipta í tvo meginflokka, hrein efni og efnablöndur. Hreinum efnum má svo skipta í tvo flokka. Hvaða flokkar eru þetta?
Efnisheimurinn - 1. kafli

Quiz
•
Chemistry
•
8th - 10th Grade
•
Medium
Þorbjörg Ólafsdóttir
Used 3+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Frumefni og efnablöndur
Efnasambönd og grunnefni
Frumefni og efnasambönd
Sameindir og frumeindir
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mjólk er dæmi um?
Efnablöndu
Efnasamband
Frumefni
Hreint efni
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gull er?
Frumefni
Efnasamband
Efnablanda
Misleitt frumefni
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Þegar klaki (ís) breytist í vökva kallast það?
Bráðnun
Gufun
Storknun
Þétting
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Þegar gufa breytist í vökva kallast það?
Bráðnun
Gufun
Storknun
Þétting
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Þegar vökvi breytist í gufu kallast það?
Bráðnun
Gufun
Storknun
Þétting
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Þegar vökvi breytist í fast efni kallast það?
Bráðnun
Gufun
Storknun
Þétting
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