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

The moon is about 240,000 miles from Earth period what is the distance written as a whole number multiplied by a power of 10

What is 3,200,000,000,000 in scientific notation

can some help me better to remember the map of Europe ?

A carton can hold 1000 unit cubes that measure 1 inch by 1 inch by 1 inch. Describe the dimensions of the carton using unit cubes. Can you explain to me how to

Death Valley has an elevation if -282 feet relative to sea level. Explain how to use absolute value to describe the elevation of Death Valley as a positive inte

67.943 in expanded form

A worker in a sunglass factory can make 50 frames or 100 lenses per day. There are 90 workers. How many workers should make lenses?

By tradition, when does the presidential campaign begin?

Write 0.632 in 2 forms

Calculate the number of moles 2.25 g of Na2CO3 0.800 g of NaOH 17.75 g of Na2SO4