Caracter metalic

Caracter metalic

9th Grade

13 Qs

quiz-placeholder

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Caracter metalic

Caracter metalic

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Hard

Created by

EMILIA PISTRIȚU

Used 10+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Care dintre metale este cel mai reactiv ?

Na

Zn

Cu

Ag

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Care dintre metale este mai reactiv decât aluminiu ?

Mg

Na

K

toate

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Care dintre metale reacționează cel mai ușor cu apa ?

Al

K

Mg

Na

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Metalele alcaline ( grupa IA) se păstrează sub petrol deoarece reacționează foarte ușor cu oxigenul din aer .

adevărat

fals

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Metalul cel mai puțin reactiv este ?

Ca

Fe

Mg

Cu

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

În grupă, caraterul metalic ...........de sus în jos

crește

scade

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Ecuația reacției dintre sodiu și apă este ?

2Na +2 H2O = NaOH + H2

Na +2 H2O = Na2O + H2

2Na +2 H2O = 2NaOH + H2

2Na +2 H2O = 2NaH2 + O2

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