2 years ago

Please explain me answer a b c d

Chemistry

2 answers:

Maru [420]2 years ago

4 0

$\rule{2000pt}{1000000pt}$

Lilit [14]2 years ago

3 0

Answer:

I don't know the answers of chemistry if you have an entrance question of maths so I can

You might be interested in

What will the sun become when it dies

Nina [5.8K]

Answer:

It will become a red giant

Explanation:

When the sun runs out of its hydrogen fuel and the hydrogen atoms are combined together to make helium atoms, it expands into a red giant, which is made up of helium atoms and gases.

5 0

3 years ago

Write net ionic equations for the formation of each of the precipitates observed. Express your answers as chemical equations sep

8090 [49]

answer is attached in image

3 0

3 years ago

Why does a hot air balloon rise when the air inside it is heated

Nastasia [14]

hot air rises up in the balloon and lifts the balloon up

7 0

3 years ago

What’s a covenant bond

Arada [10]

Answer:

A covenant bond I’d a chemical bond involving electron pairs between atoms.

Explanation:

7 0

3 years ago

One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is Fe2O3 + 3CO → 2Fe + 3CO2 Su

solong [7]

Answer:

$89.55~\%~of~Fe_2O_3~in~the~sample$

Explanation:

The first step in this reaction is the converstion from Kg of $Fe$ to grams of $Fe_2O_3$ .

$1.19x10^3~Kg~Fe~\frac{1000g~Fe}{1~Kg~Fe}~\frac{1~mol~Fe}{55.84~g~Fe}~\frac{1~mol~Fe_2O_3}{2~mol~Fe}~\frac{159.68~g~Fe_2O_3}{1~mol~Fe_2O_3}~\frac{1~Kg~Fe_2O_3}{1000~g~Fe_2O_3}$

$X~=~1.7x10^3~Kg~Fe_2O_3$

Then we can calculate the percentage of $Fe_2O_3$ in the sample:

$\%~Fe_2O_3~=~\frac{1.7x10^3~Kg~Fe_2O_3}{1.9x10^3~Kg~Sample}*100$

$89.55~\%~of~Fe_2O_3~in~the~sample$

3 0

3 years ago