Compounds and their number of constituent atoms — task. Science State Board, Class 7.

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Find the correct number of constituent elements for the given compounds:

Answer variants:

$1$ - Zinc,

$4$ - Oxygen,

$1$ - Carbon

$1$ - Carbon,

$2$ - Oxygen

$2$ - Carbon,

$1$ - Oxygen

$1$ - Sodium,

$1$ - Chloride

1. Sodium chloride -

2. Carbon dioxide -

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