Question

1. What is molecular formula? Calculate the molecular mass of followings.
a) Nacl
b) C6H1206
c) H2S04
d) HNog
2. What do you mean by Tyndall effect? What are its Causes? Explain with example
3. State and explain the law of conservation of energy, with help of examples.
4. State and explain the laws of Conservation of momentum With the help of examples
5. Define a following team - a) Ligament
b) Tendon
c) Blood d) Xylem​

Answer 1

Answer:

1. Molecular formula definition is - a chemical formula that gives the total number of atoms of each element in each molecule of a substance.

a. 58.44

b.180

c.98

d. its hno3 ..51

2.The scattering of a beam of light by the colloidal particles is called Tyndall effect. For example Tyndall effect is caused :- 1. When a narrow beam of light enters a darkened room. 2. It is observed in theatres , when narrow beam is passed from a greater distance.

3.The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another

Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy

4.Law of conservation of momentum is defined as a principle in physics that says that some parts in an isolated system remaining steady and unchanging over time even when others are moving.

An example of law of conservation of momentum is Newton's cradle, a device where, when one ball is lifted and then let go, the ball on the other end of a row of balls will push upward.

5. connects bone with bone

b. bone with muscles

c. fluid that helps in transportation etc

d.. water and mineral carrier complex tissue in plants