Question

answer it please i will mark you as brainlist​

Answer 1

Answer:

Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: .

Answer 2

Q.2: Find the perimeter of a rectangle whose length and breadth are 12 cm and 15 cm, respectively.

Solution:

Given:

Length = 12 cm and Breadth = 15 cm

We know,

The perimeter of a rectangle = 2(length + width)

Substitute the value of length and width here,

Perimeter, P = 2(12 + 15) cm

P = 2 x 27 cm

Therefore, the perimeter of a rectangle = 54 cm