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CONC.NUMER.n14

Authored by Radu RaduB

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KG

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CONC.NUMER.n14
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16 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

IONII SUNT ATOMI

NEUTRI

FARA SARCINA ELECTRICA

INCARCATI CU SARCINA ELECTRICA

MOLECULE

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

ELECTRONEGATIVITATEA ESTE CAPACITATEA ATOMILOR DE A ATRAGE ELECTRONI, ELEMENTUL CEL MAI ELECTRONEGATIV ( NEMETAL) ESTE FLUORUL, IN DREAPTA T.P.E.

ADEVARAT

FALS

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

METALELE AU ELECTRONEGATIVITATE MICA, FORMAND IONI POZITIVI, DE EXEMPLU

FLUOR

CLOR

BROM

FLUOR

CLOR

BROM

CESIU

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

IN MOLECULE, SUMA ALGEBRICA A NUMERELOR DE OXIDARE ALE ELEMENTELOR ESTE ZERO, REPREZINTA

REGULA STABILIRE N.O.

ETAPE COEFICIENTI REDOX

pH-UL ACIDULUI

pH-UL BAZEI

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

ARDEREA UNUI METAL IN OXIGENUL DIN AER ESTE REACTIE CU TRANSFER DE

PROTONI

ELECTRONI

MOLECULE

IZOTOPI

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

NEUTRALIZAREA ACIZILOR CU BAZE ESTE ESTE REACTIE CU TRANSFER DE

PROTONI , IONI HIDROGEN H+

ELECTRONI

MOLECULE

IZOTOPI

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

NEMETALELE ATRAG ELECTRONI FORMAND IONI NEGATIVI ( ANIONI), AU ELECTRONEGATIVITATE

MARE

MICA

EGALA

NU AU

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