8 SC Acid-Metal Reaction Review

Which of the following substances is a metal?

• Carbon

• Sulphur

• Zinc

• Chlorine

Hydrochloric Acid is made up of Hydrogen and Chlorine. Select the symbols that match these two elements

• He

• C

• H

• Cl

Which of the following is the symbol for Hydrochloric Acid?

• H2SO4

• HCl

• H2O2

• H3PO4

When we react Hydrochloric Acid with a Metal, which gas is produced?

• Hydrogen

• Carbon dioxide

• Helium

• Argon

When a metal and an acid react, what other things could we observe?

• Explosive flame

• Bubbles

• Heat

• Colour change

We can test what type of gas is produced in an acid-metal reaction by:

• Heating it up

• Cooling it down

• Holding a lighted paddle-pop stick close to the solution

• Adding food dye

When a lighted taper (or paddlepop stick) is held close to a reaction and it pops we call this this a:

• Flame test

• Heat test

• Gas test

• Pop test