Roztoky, hmotnostní zlomek
Quiz
•
Chemistry
•
3rd Grade
•
Medium
Svatava Sumbalová
Used 15+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Roztok je
heterogenní směs
homogenní směs
koloidní směs
sloučenina
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Vyber směsi, které nejsou roztoky
sůl ve vodě
cukr ve vodě
křída ve vodě
vzduch
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Vyber pevné roztoky:
ocel
bronz
vzduch
žula
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Vyber kapalné roztoky
olej + voda
50% ovocný džus
alkoholický nápoj
voda se sirupem
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
V roztocích elektrolytu
se částice rozštěpí na ionty
probíhá elektrický proud
jsou molekuly nerozštěpené
se ionty spojují do molekul
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
V nasyceném roztoku
se dá rozpouštět další látka
se již další látka nerozpustí
je přebytek rozpuštěné látky
neprobíhá elektrický proud
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fyziologický roztok obsahuje 0,9 % soli. Jaký je hmotnostní zlomek soli ve fyziologickém roztoku?
0,9
0,09
0,009
0,0009
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