Answer:
Solution A is a Weak Alkali, Solution B is a strong Acid.
Explanation:
At pH 10, the colour is blue, therefore it's a weak alkali.
At pH 1, the colour is red, therefore it's a strong Acid.
Just took it, Hydrogen bonds
element is made up of only one type of atoms.
it is pure form of matter
example hydrogen, oxygen, carbon etc
<u>Answer:</u> The volume of bone for given sample is 
<u>Explanation:</u>
To calculate volume of a substance, we use the equation:

Density of bone =
(Conversion factor: 1 g = 1000 mg)
Mass of bone = 25 g
Putting values in above equation, we get:

Hence, the volume of bone for given sample is 
Answer:
Characteristics: Oxygen in its common form (O2) is a colorless, odorless and tasteless diatomic gas. Oxygen is extremely reactive and forms oxides with nearly all other elements except noble gases. Oxygen dissolves more readily in cold water than warm water.