Elem 3C Quiz By Lil clan

general knowledge

10

9 x 8 + 2 - 4 =

70

50

Chemical formulas of

Water?

H₂O

60

in which country would you find the ancient city of Petra?

Jordan

75

angle of sin cos tan in 90 angle

1, 0, undefined

100

What is the atomic number (Z)?

The number of protons in the nucleus of an atom