Question

1 Name the followings:
a) The Combourd whose chemical formula is H₂SO
b) The bacterium which help in making the soil dich
in nitrogen.
c) The metal which expands in a uniform way and
semains in its liquid stale over a wide terbent
DAY 762 203
WK 24
THURSDAY
temputure sange.
11
d) The subatomic particles that
mucleus of an
devolves around the
of an atom.​

Answer 1

1.The chemical formula for sulfuric acid is H2SO4. To count the total number of atoms for formulas with polyatomic ions enclosed in parenthesis, use the subscript as a multiplier for each atom or number of atoms.

2.Rhizobium bacteria take nitrogen from the atmosphere and convert it to a form the plant can use.

3.solid

4.The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.