Question

• The soil is formed from the
• Dark colored dust formed by rotten remains of plants and animals

• Soils contain, and
that make up the ground
3.-Mention 4 properties of air:





4.- What is Matter?

5.- Mention the general properties of Matter:



6.- What are molecules?

7.- What is Chemistry?




8.- Complete the table:












9.- Write the formula for the following basic oxides:
a) ferrous oxide: ____________________________________________
b) ferric oxide: ____________________________________________
c) lead oxide: ____________________________________________
d) sodium oxide: ____________________________________________
10.- Write the formula for:
a) phosphoric oxide: ____________________________________
b) sulfurous oxide: ____________________________________
c) Hyposulfurous oxide: ____________________________________
d) hyperchloric oxide: ____________________________________

Answer 1

Answer:

oh my god who will answer these many questions......

Answer 2

Explanation:

please ask the question one by one

we cannot able to answer long question