Answer : The correct option is, They are different units of concentration.
Explanation :
Molarity : It is defined as the number of moles of solute present in one liter of solution.
Formula of molarity :
Mass percent : It is defined as the mass of solute present in the mass of solution.
Formula of mass percent :
Hence, both are the different unit of concentration.
23. The correct answer would be a (AlPO4 + H2O).
This is an example of a neutralization reaction (an acid and a base react to form water and a salt).
24. a, combination reaction. There are two reactants and one product.
Answer: A option
Type A are skeletal muscles, because skeletal muscles are the only voluntary type.
Explanation:
There are three types of Muscles:
- Skeletal Muscles
- Smooth Muscles
- Cardiac Muscles
From the given table we have to identify which type of muscles are Type A. From the table we can list the following properties of Type A muscles:
- Are voluntary
- Have striations
- Tires Quickly
These three characteristics belong to Skeletal muscles only. Therefore, option C and D cannot be correct.
Option A and option B both lists the skeletal muscles. Now we have to identify which of these is correct. Option B reads that skeletal muscles are only type with striations. This is incorrect as Cardiac Muscles are also without striations.
Hence option A is the correct answer as skeletal muscles are the only muscles that are voluntary muscles.
J.J Thomson was the one who discovered the electron so your answer is 5. or E
