Answer : The value of 'R' is 
Solution : Given,
At STP conditions,
Pressure = 1 atm
Temperature = 273 K
Number of moles = 1 mole
Volume = 22.4 L
Formula used : 
where,
R = Gas constant
P = pressure of gas
T = temperature of gas
V = volume of gas
n = number of moles of gas
Now put all the given values in this formula, we get the values of 'R'.
Therefore, the value of 'R' is .
They are living organisms in the ecosystem and make up part of the food chain.<span />
Answer:5
Explann:
I've actually not learnt it but i can solve other questions under Maths
Answer:
B. A new substance is produced.
Explanation:
In chemical changes, you will always have a new end product from the reactants that were used within the process.
Please mark as brainliest! <3
Amorphous and crystalline are the two types of matter classified by the arrangement of its atoms.
Explanation:
There are several criteria present to classify the matters present in this universe. We can classify the matter based on their physical state like solid, liquid and gas. We can also classify the matter based on their composition like pure substance and mixtures. Similarly another way of classifying the matter is based on their arrangement of atoms. If the atoms are arranged in an orderly manner, then they are termed as crystalline matter. And if the atoms are arranged in a random way, then they are termed as amorphous matter.
Thus, the two types of matter classified by the arrangement of its atoms are amorphous and crystalline.
