During which of the following chemical changes does a precipitate form?
a. vinegar is added to baking powder
b. lemon juice is added to milk
c. lemon juice is added to water
d. a banana ripens

Option (B) is the correct answer.

Explanation:

A solid which is not soluble and has formed from the liquid solution is known as a precipitate.

For example, when lemon juice is added to milk then it results in the formation of paneer (cheese) that is insoluble.

Hence, we can conclude that during the addition of lemon juice into milk will bring a chemical change by forming a precipitate.

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

80cm/s.

24cm/s.

53.3cm/s.