danielsfrenchfries danielsfrenchfries

04-02-2020
Chemistry

contestada

witch equations are correctly balanced.
H 2 O + 2O 2 H 2 O 2
Fe 2 O 3 + 3H 2 2Fe + 3H 2 O
Al + 3Br 2 AlBr 3
CaCO 3 CaO + CO 2

Respuesta :

04-02-2020

Answer:

2nd and last.

Explanation:

In the first equation,the number of hydrogen atoms is not balanced and in the third,the number of aluminum atoms is not balanced.

Answer Link

evamoreno244466666 evamoreno244466666

08-12-2020

Answer:

1. Fe 2 O 3 + 3H 2 2Fe + 3H 2 O

2. CaCO 3 CaO + CO 2

Answer Link

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