Question

Self-Assessment Exercise 1.7
1. Observe the given figure and identify the diagrams that represents the particles of:
a) An element whose particles are atoms.
b) An element whose particles are molecules.
c) A compound.
d) A mixture of an element and a compound.
e) A mixture of two elements.
f) A mixture of two compounds.
2. Observe the given figure and decide which diagram represents particles in an element
a compound or a mixture.

Answer 1

Answer:

the given figure and identify the diagrams that represents the particles of:

a) An element whose particles are atoms.

b) An element whose particles are molecules.

c) A compound.

d) A mixture of an element and a compound.

e) A mixture of two elements.

f) A mixture of two compounds.

2. Observe the given figure and decide which diagram represents particles in an element

a compound or a mixture.

Answer 2

Answer:

1.

a) Ar

b) Cl²

c) SO²

d) no figure

e) nitrogen and hydrogen

f) Carbon dioxide and carbon monoxide

2.

a) element (v)

b) compound (ii)

c) mixture (iii)

g)