4 Things You Were Taught Wrong in Chemistry

The video debunks four common chemistry myths: 1) Atoms are not solid spheres but mostly empty space with a nucleus and electron cloud. 2) Solutions can be solids, liquids, or gases, not just liquids. 3) Chemical equations represent ratios of substances, not actual quantities. 4) Not all metals are magnetic; magnetism depends on unpaired electrons. The video aims to clarify these misconceptions and provide a better understanding of chemistry concepts.

What is the common misconception about the structure of an atom?

• Atoms are made of protons and neutrons only.

• Atoms have a nucleus and an electron cloud.

• Atoms are solid spheres.

• Atoms are mostly empty space.

Which of the following is NOT a type of solution?

• Solid-solid

• Gas-liquid

• Liquid-liquid

• Gas-gas

What do the numbers in a chemical equation represent?

• The speed of the reaction

• The actual amount of substances present

• The ratio of substances needed for the reaction

• The weight of each substance

Why are not all metals magnetic?

• Magnetism is a property of non-metals.

• Only metals on the right side of the periodic table are magnetic.

• Magnetism requires unpaired electrons.

• All metals have paired electrons.

What is necessary for a metal to be magnetic?

• A high melting point

• Being a noble gas

• Paired electrons

• Unpaired electrons