Aayaans pro quiz

What is a physical change

• Cutting paper

• Burning

• Mixing chemicals

• Humans growing

Name the compound CH3COOH

*(In capital)

Write the formula of acetic acid

Baking soda is an

• Mineral

• Item

• Aicd

• Nothing

• Base

What are the components from which iron rusts

• Air

• water vapor

• Bacteria

• Corona

What change is this?

• Burning

• Physial

• Chemical

• NO CHANGE JUST THE SAME NI-

What is the chemical formula of iron

What is the main component in chemical changs

• New substance is formed

• Air comes out

• Burning

• Nothing

What is the the formula of rusting

• sublingual glands.

• Fe₂O₃

• o2

• o2-245sty

What is lime water

• Calcium hydroxide

• Cot

• carbon diosxide water

• Air and nitrogen

• Hydrogen