All categories

3 years ago

What are some chemical formulas for compounds?

Chemistry

1 answer:

Galina-37 [17]3 years ago

4 0

Hello there!

First, we need to know what compounds are.
Compounds "are pure substances that are made up of two or more elements that are chemically combined in fixed mass ratios."

Now we need to understand what chemical formulas are.
The compounds have a chemical formula which tell us that
a) the elements that are present in the compound
b) the ratio of these elements in the compound

What are some chemical formulas for compounds?
Well, we start with water. The chemical formula for water is H2O

When we go back to the definition of compounds, it says it is when a pure substance that are made up two or more elements. So, whatever is a pure substance and it's made up of two elements. These elements are Hydrogen and Oxygen. And keep an mind that water is made up with metal plus non-metal.

--------------------------------------
Here are one more chemical formulas for compounds
Sodium Chloride = NaCI

I included a picture that might help you too. (Credit to google image)

You might be interested in

If a balloon is expanded from 0.055 l to 1.403 l against an external pressure of 1.02 atm, how many l⋅atm of work is done?

Ahat [919]

Work for a irreversible reaction, in thermodynamics, is calculated by multiplying the external pressure with the change in volume. Therefore,

Work = P ( V2 - V1 )
Work = 1.02 (1.403 - 0.055)
Work = 1.375 L-atm

Hope this answers the question. Have a nice day.

8 0

3 years ago

If the density of an object is 60 g/cm 3 and its mass 20 grams what is its coulume in cm 3

Licemer1 [7]

3 cubic centimeters, Volume= density/ mass

7 0

4 years ago

Is bread a molecule or a compound

Papessa [141]

Answer:

Bread is a Molecule.

Explanation:

This is what I found.

Bread cannot be classified as a compound. Compounds are formed when two or more substances are bonded together chemically, however, mixtures are not chemically bonded.

The chemical building blocks of bread are proteins and starch. Starch molecules are long, chained polymers of simple sugars (such as glucose) joined end to end by chemical bonds. Proteins on the other hand are more complex, made up of varying combinations of different amino acids.

Hope this helps.

7 0

3 years ago

A student wants to lift a 50 N backpack off of the floor. Tell me what will happen to the backpack depending on the amount of fo

kirza4 [7]

Answer:

srry agian

Explanation:

6 0

4 years ago

2 Fe2S3 +902 - 2 Fe2O3 + 6 SO2

maksim [4K]

Answer:

3.93 mol

Explanation:

The balanced equation is given as;

2 Fe₂S₃+ 9 O₂ --> 2 Fe₂O₃ + 6 SO₂

From the reaction;

2 mol of Fe₂S₃ reacts with 9 mol of O₂ to form 6 mol of 6 SO₂

This means;

1 mol of Fe₂S₃ requires 9/2 mol of O₂

Also,

1 mol of O₂ requires 1/9 mol of Fe₂S₃

In the question, we have;

1.31 moles of Fe2S3 and 22.8 moles of O2

The limiting reactant which determine how much of the product formed is; Fe₂S₃ because O₂ is in excess.

The relationship between Fe₂S₃ and SO₂ is;

2 mol Fe₂S₃ produces 6 mol of SO₂

1.31 mol of Fe₂S₃ would produce x mol ?

2 = 6

1.31 = x

x = 6 * 1.31 / 2 = 3.93 mol

8 0

3 years ago