D.I.R.T

Question 1

Volatile

Answer 1

easily evaporated, turns to gas easily

Question 2

Resolution

Answer 2

Smallest marking that can be measured in a equipment. eg : on a thermometer the smallest resolution is 0.05 degree celsius.

Question 3

Diffusion

Answer 3

Diffusion is the process by which molecules or particles spread from areas of higher concentration to areas of lower concentration, resulting in the even distribution of substances.

Question 4

If something has a high volatility will it have a low or high boiling point

Answer 4

Substance with high volatility have low boiling point.

Question 5

Do simple covalent compounds have a high or low volatility

Answer 5

Simple covalent compounds have low volatility

Question 6

Describe how metallic elements and non metallic elements form ionic bonds

Answer 6

When a metal and a non-metal come into contact, the metal atom loses electrons, becoming a positively charged ion. Simultaneously, the non-metal gains those electrons, forming a negatively charged ion. The resulting oppositely charged ions are attracted to each other due to electrostatic forces, forming an ionic bond.

Question 7

To find no. of neutrons ?

Answer 7

Atomic mass - atomic number

Question 8

How can u identify if a substance is pure or impure ?

Answer 8

Pure substance have sharp melting point whereas impure substance melt over a range of temperatures. if melting point doesnt match the reference book value then it is an impure substance

Question 9

Why can Ammonia gas not be collected using an upturned test tube/ measuring cylinder filled with water ?

Answer 9

The ammonia gas will dissolve in water and will not be abled to be collected as it will be dissolved in water.