Y8 REACTIVITY INC. OXIDES

In the reaction:
Magnesium + Hydrochloric Acid → Magnesium Chloride + Hydrogen

Which option correctly lists ONE reactant and ONE product?

• Hydrochloric Acid + Hydrogen

• Magnesium + Hydrochloric Acid

• Hydrogen + Magnesium Chloride

When zinc (Zn) reacts with hydrochloric acid (HCl), the products are:

• ZnCl₂ + H₂O

• ZnO + Cl₂

• ZnCl₂ + H₂

• ZnH₂ + Cl₂

Which general class of chemicals is always produced when a reactive metal (e.g., Mg, Zn) reacts with an acid (e.g., HCl, H₂SO₄)?

• Oxides

• Salts

• Hydroxides

• Nonmetal hydrides

Refer to the reactivity series. Which metal reacts MORE vigorously when burned in air?

• Sodium (Na) – Burns with a bright yellow flame, forming sodium oxide (Na₂O).

• Magnesium (Mg) – Burns with a brilliant white flame, forming magnesium oxide (MgO).

• Both react equally vigorously.

• Neither reacts with air.

Some metals react with hydrochloric acid. The products are ​ (a)   and ​ (b)   gas. Iron reacts more vigorously than ​ (c)   and less vigorously than​ (d)   . Some metals, for example, ​ (e)   , do not react with dilute acids.

• a salt
• an alkali
• hydrogen
• oxygen
• lead
• zinc
• gold

Complete the word equation for the reaction of calcium with hydrochloric acid, and name the salt produced:

Calcium + Hydrochloric Acid → (a)   + Hydrogen

Name of the salt.

Pg. 122: Magnesium reacts with oxygen even when you do not heat it. If you leave magnesium in the air, its surface atoms react with oxygen. This forms a thin layer of ...

(a)  

Match the following metals to their reaction when burned in oxygen.

• copper

• Produces a yellow flame when burned in oxygen

• zinc

• Produces white sparks when burned in oxygen

• magnesium

• Doesn't produce a flame when burned in oxygen

• sodium

• Produces a brilliant white flame when burned in oxygen

Write a word equation for the reaction of iron with oxygen. (= means yields)

(a)  

What class of reaction does the combustion of sodium belong to?

(a)