Bju 11 Chemistry

An ionic bond is formed between

• two metals

• a metal and a non-metal

• two non-metals

a covalent bond is formed between

• two metals

• a metal and a non-metal

• two non-metals

covalent bonding is

• sharing of electrons

• transfer of electrons

• sharing of protons

• sharing of neutrons

Tags

NGSS.HS-PS1-1

This bonding involves the transfer of electrons from atom to another.

• ionic
• covalent
• metallic
• static

Tags

NGSS.HS-PS1-1

This bonding involves two non metals or 2 hydrogens

• covalent
• ionic
• metallic
• hydrogen

When a chemical reaction happens

• bonds must be broken and reformed
• chemicals don't collide
• atoms keep their arrangements
• chemicals keep their same properties

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-7

How many of each element are in 3Al₂(SO₄)₃

• 6Al, 9S, 36O

• 3Al₂, 3S, 12O

• 18Al, 9S, 12O

• 6Al, 12SO

An observation made with your senses

• Qualitative observation

• Quantitative observation

• temperature

• conclusion

Which of the following is an example of quantitative data?

• grey

• oily

• 44.2^oC

• Copper

What is the correct representation of 702.2g in scientific notation?

• 7.02 x 10³g

• 70.22 x 10¹ g

• 7.022 x 10² g

• 70.22 x 10² g