Lab Quiz

Question 1

Law of Conservation of Mass Lab 1

Answer 1

Aqueous iron (III) chloride + aqueous sodium hydroxide which produced solid iron (III) hydroxide and aqueous sodium chloride (double displacement)

Covered erlenmeyer flask/small test tube

Question 2

Law of Conservation of Mass 2

Answer 2

Aqueous hydrochloric acid + solid sodium bicarbonate which produced sodium chloride (a salt), water, and CO2 (neutralization)

Test tube and beaker

Question 3

Cornucopia of Labs 1

Synthesis

Answer 3

Solid iron (steel wool) reacts with oxygen gas to produce solid iron oxide (synthesis)

Iron ions excited by a 6V battery, used a watch glass

Question 4

Cornucopia of Labs 2

Single Displacement

Answer 4

Aqueous hydrochloric acid + solid magnesium yields aqueous magnesium chloride and hydrogen gas (single displacement)

After rubber stopper was taken off the test tube, flaming splint was inputted and a “pop” noise was heard

Question 5

Cornucopia of Labs 3

Double Displacement

Answer 5

Aqueous silver nitrate + aqueous potassium iodide reacts to form solid silver iodide and and aqueous potassium nitrate (double displacement)

Used a test tube and graduated cylinder, and a yellowish precipitate was formed

Question 6

Cornucopia of Labs 4

Double Displacement

Answer 6

Aqueous potassium hydroxide and aqueous iron (III) chloride reacts to form solid iron (III) hydroxide and aqueous potassium chloride

Used a test tube and graduated cylinder, and a reddish-brown precipitate formed

Question 7

Cornucopia of Labs 5

Decomposition

Answer 7

Aqueous hydrogen peroxide + “catalyst” manganese (IV) oxide to form water and oxygen gas (decomposition)

Bubbles formed and glowing splint reignited

Question 8

Cornucopia of Labs 7

Synthesis

Answer 8

Solid magnesium + oxygen gas to form solid magnesium oxide (synthesis)

In a crucible with a bunsen burner, colour changed to white

Question 9

Cornucopia of Labs 9

Neutralization

Answer 9

Aqueous acetic acid + solid sodium bicarbonate produces aqueous sodium acetate, water, and carbon dioxide gas (neutralization reaction)

Uses pH paper and litmus paper to measure if the solution is acidic or basic

Question 10

What happens when you light a bunsen burner

Answer 10

When lighting a bunsen burner, you are combusting the hydrogen methane (CH4) by mixing it with oxygen gas (O2). The result is carbon dioxide gas (CO2), water (H2O), and energy is released in an exothermic reaction