Chemistry quiz

Na + Cl → ?

• NaCl

• Basic Salt

• nickel

• pH

The atomic number of chlorine is:

• 118

• 17

• 42

• 35

In an acid-base reaction, the products are in chemical form are:

• Sodium Chloride

  +

  Water

• NaCl

  +

  H₂O

• Baking Soda

• Neutralizing

____ table is the tabular display of elements

Answer explanation

The reason why it is called "Periodic" Table is because of the elements being individual periods.

The periodic table was created by Russian scientist Dimitri Mendeleev. The Periodic table is also a subject in physics.

_____ are two or more elements that are part of a reaction to create a product.

• Product

• Multiplicand

• Reactants

• Byproduct

A mixture is a/an _____ substance.

• Impure

• Pure

• Undiscovered substance property

• Still yet unknown

Anything that has a pH above 7 is considered as a ____

• acid

• base

• water

• salt

What is the full form of R + R = P?

• Reactant + Reactant

  = Product

• R + R = P - R x R

• l+m+n+o+p

• S

Lemon juice has a pH about _

• 2

• 2.5

• 8

• 14

H2S + Cl2 = ? + ?

• HCl+S

• Hydrochloric Acid

• H2SCl2

• Ammonia