This is not easy. For many of the chemical elements there are several known isotopes. Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
Fossil fuels are an important natural resource used by society and they are organic fuels derived from ancient plants and animals.
<h3>What are fossil fuels?</h3>
Fossil fuels are the natural resources means they are derived from the ancient resdue of plants and animale due to theor decomposition under high temperature and pressure.
- Fossil fuel may be present in solid, liquid as well as in gaseous form so the given option (a) is incorrect.
- This is the wrong assumption that in the fossil fuel we get the fossils of dinosaur, so option (c) is incorrect.
- They are not inorganic fuels infact they are organic fuels.
So, fossil fuels are organic fuels derived from ancient plants and animals.
There are 22.5 grams of protein in one cup of soup that has 140 kcal with 8 g of carbohydrate and 2 g of fat.
<h3>What is the mass of a substance?</h3>
The mass of a substance is the quantity of the substance that is being measured in grams or kilograms.
To determine the energy from the 8g of carbohydrate, we have:
= 8g × 4 kcal/g (the corresponding calories of food type)
= 32 kcal
The energy from 2g of fat = 2g × 9 kcal/g
= 18 kcal
The energy from protein is calculated as:
= 140 kcal - 32 kcal - 18 kcal
= 90 kcal
The required mass of the protein in grams is:
= 22.5 grams
Therefore, we can conclude that there are 22.5 grams of protein in one cup of soup.
Learn more about the mass of a substance here:
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Atoms will be split into hydrogen and oxygen. A deep blue solution will be formed. Light will be given off. It will create a small explosion.
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