Efnisheimurinn kafli 1 (10-2)

Efnisheimurinn kafli 1 (10-2)

10th Grade

28 Qs

quiz-placeholder

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Efnisheimurinn kafli 1 (10-2)

Efnisheimurinn kafli 1 (10-2)

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Medium

Created by

Jón Aðalsteinn Brynjólfsson

Used 40+ times

FREE Resource

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28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvernig fær maður efnafræðilega hreint vatn

með eimingu

það er ekki hægt

með storknun

annað

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvaða meginflokka má skipta efnum í

hrein efni og efnablöndur

hrein efni og frumefni

efnasambönd og hrein efni

efnablöndur og frumefni

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvaða vísindamaður var fyrstur til að sundra vatni í tvö efni

Antoine Lavoasier

Albert Einstein

Amedeo Avogadro

Jacob Berzelius

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvaða ár var vatni sundrað í frumefni í fyrsta skipti

1785

1770

1773

1794

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvernig finnur maður út hvort efni er frumefni eða efnasamband?

Skoða formúluna

Gera tilraun

Skoða litlu stafina

Skoða tölustafi

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvað er mjólk dæmi um?

Efnablöndu

Kúapiss

Frumefni

Efnasamband

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hvað stendur Li fyrir?

Liþín

Klór

Limíum

Litur

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