Decomposition Reactions

Name this chemical: Cu(OH)₂

• copper oxide

• copper(II)hydroxide

• copper(I)hydroxide

• carbon dioxide

What does the "thermal" in thermal decomposition mean?

• sulfur

• catalyst

• heat

• oven

Tags

NGSS.HS-PS3-4

What colour is copper(II)carbonate

• white

• blue

• colourless

• green

copper(II)carbonate → ___________ + carbon dioxide

• copper(I) oxide

• copper(II) oxide

• copper oxide

• copper(III) oxide

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What colour is sodium hydrogen carbonate?

• white

• blue

• green

• yellow when hot

What happens when CO₂ is bubbled through limewater

• It changes from pink to blue

• It goes pop

• It goes cloudy

• It gets hot

Tags

NGSS.MS-PS1-2

metal hydroxide (+ heat) → ____________ + _________

• metal carbonate + water

• metal oxide + carbon dioxide

• carbon dioxide + water

• metal oxide + water

Tags

NGSS.HS-PS1-7

If water is present cobalt chloride paper turns from _______ to _______

• white to green

• blue to pink

• pink to blue

• green to white

What colour is copper (II) oxide

• white

• green

• blue

• black

NaHCO₃ decomposes when heated to give _____ _____, carbon dioxide and water

• sodium oxide

• sodium carbonide

• sodium carbonate

• water and carbon dioxide

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5