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Kovy 3

Authored by Petra Horáková

Chemistry

8th Grade

Used 16+ times

Kovy 3
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10 questions

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1.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

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Který prvek nepatří mezi alkalické kovy?

H

Na

K

Li

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

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Vyber, která vlastnost nepatří alk. kovům.

silně reaktivní s vodou

kujné

malá hustota

měkké

3.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

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Jakou barvu má kation sodíku v plamenu?

červenou

žlutou

fialovou

zelenou

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

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Fialovou barvu v plamenu má:

Li +

Na +

K +

Rb +

5.

FILL IN THE BLANKS QUESTION

10 sec • 1 pt

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Který kov se vyskytuje v rudě zvané galenit?

(a)  

6.

FILL IN THE BLANKS QUESTION

10 sec • 1 pt

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Stříbro se vyskytuje v rudě zvané:

(a)  

7.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Vyber použití sodíku:

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