Question

14. Which one of the following statements describes a test for hydrogen gas?
allt turns blue litmus paper red.
b)lt turns red litmus paper blue.
c)lt turns lime water milky.
d)lt burns with a pop sound.

15.Identify the resource that is a source of paraffin wax.
a)Petroleum
b)Coal
c)Natural gas
d)Coal tar

16.When two forces act in opposite directions of an object, the net force acting on it is
a)the sum of two forces.
b)the product of the two forces.
c)the difference between the two forces.
d)the ratio of the two forces.​

Answer 1

Answer:

;it terns red litmus papers blue

coa

the radio of two faces

l

a

Answer 2

Answer:

14.  d) lt burns with a pop sound is the  statement describes a test for hydrogen gas

15. Paraffin wax is a soft colorless solid derived from petroleum, coal

16. When two forces act in opposite directions of an object, the net force acting on it is c)the difference between the two forces.