Ainsley - Inorg lec (Fundamentals 1&2)

Branches of Chemistry include:

• Organic

• Inorganic

• Biochemistry

• Analytical

Matter is anything that has space and occupies space. The more massive an object is, the less force is needed to put it in motion.

• Only the first statement is correct

• Only the second statement is correct

• Both statements are correct

• Both statements are incorrect

Energy in motion

• Kinetic

• Potential

• Matter

• Energy

Example/s of a heterogenous mixture:

• Colloids

• Suspensions

• Solutions

• Metals

Matter that can’t be separated as it has a fixed composition.

• Pure substance

• Mixture

• Matter

• Energy

Examples of Intensive properties, except:

• Density

• Conductivity

• Mass

• Volume

Examples of Physical properties include:

• Color

• Hardness

• Boiling point

• Melting point

Atom is considered as the smallest unit retaining an element’s properties. It is based on Dalton’s theory stating— all matter is composed atoms that can’t be made/ destroyed.

• Only the first statement is correct

• Only the second statement is correct

• Both statements are correct

• Both statements are incorrect

Identify the number of protons in the element shown in the picture:

• 9

• 10

• 19

• 28

Identify the number of electrons in the element shown in the picture:

• 9

• 10

• 19

• 28