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

Otras preguntas

what is the meaning or definition of fighting-gear??

Who were the Nazis ?

Please tell me five slogans on conservation of natural vegetation.

A history quiz consists of five true-false questions. If you guess on each question, then the probability of answering all five questions correctly is approxima

What is the change in number of individuals in a population over time? A. population decrease B. population stability C. population growth D. population resista

The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the pool by writing and solving a syst

How consumers behaviour affect market equilibrium

The diameter of your bicycle wheel is 25 inches. How far will you move in one turn of your wheel?

Which word is an interjection commonly used in advertising?

The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the pool by writing and solving a syst