Reactia de combinare-evaluare

Reactia de combinare-evaluare

1st Grade

10 Qs

quiz-placeholder

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Reactia de combinare-evaluare

Reactia de combinare-evaluare

Assessment

Quiz

Chemistry

1st Grade

Hard

NGSS
HS-PS1-7

Standards-aligned

Created by

Oana N

Used 23+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Reactia de combinare este definita ca:

Reactia chimica in care un reactant se transforms in 2 say mai multi produsi de reactie

Reactia chimica in care 2 sau mai multi reactant se transforma intr-un singur produs de reactie

Reactia chimica in care 2 reactant se transforma in 2 produsi de reactie.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Schema generala pentru reactia de combinare este:

C=A+B

A+B=C

A+B=C+D

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Recunoaste reactia de combinare:

C+O2=CO2

2H2O=2H2+O2

2Na+2H2O=2NaOH+H2

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Reactia chimica dintre metal si oxigen are ca produs de reactie:

Oxid de nemetal

Oxid de metal

Oxiacid

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Clorul in reactie cu metalele da:

Cloruri

Floruri

Ioduri

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Oxid de nemetal +apa=:

Hidroxid

Oxid de nemetal

Oxiacid

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Reactia carbonului cu oxigenul este o reactie:

Exoterma

Endoterma

Descompusa

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