Reacția de combinare și reacția de descompunere

Reacția de combinare și reacția de descompunere

8th Grade

16 Qs

quiz-placeholder

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Reacția de combinare și reacția de descompunere

Reacția de combinare și reacția de descompunere

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Hard

NGSS
HS-PS1-7, HS-PS3-4, HS-PS1-5

+2

Standards-aligned

Created by

Giurgea Gabriela

Used 68+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In reactia de descompunere sunt:

doi reactanti

un reactant

trei reactanti

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In reactia de descompunere pot fi:

doi produsi de reactie

un produs de reactie

doi sau mai multi produsi de reactie

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Ecuatia generala a reactiei de descompunere este:

AB = A + C

X = Y + Z

A = B + C

A = B + C + D

Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Produsii de reactie obtinuti in urma descompunerii termice a CaCO3 sunt:

Ca + CO3

CaO + CO2

CaO + C

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In urma descompunerii apei oxigenate rezulta:

H2 + O2

H + O2

H2O + O2

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Reactiile chimice care au loc cu absorbtie de caldura sunt:

exoterme

endoterme

Tags

NGSS.HS-PS3-4

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Substanta care mareste viteza de reactie se numeste:

Catalizator

Enzima

substanta

Tags

NGSS.HS-PS1-5

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