Question

BRAINLIESTTT ASAP!! PLEASE HELP ME ASAP!

Answer 1

Answer:

Single displacement and reduction

Explanation:

In a single-displacement reaction, one element exchanges partners with another.

$\rm Ca + 2H _2 O \longrightarrow Ca(OH) _2 + H _2$

This is a single-displacement reaction, because the element Ca exchanges partners with H.

This is also a reduction/oxidation (redox) reaction, because the optically active of Ca increases from 0 to +2 (oxidation), while the oxidation number of H decreases from +1 to 0 (reduction),

The most common types of reactions are:

• Combination
• Decomposition
• Single displacement
• Double displacement
• Reduction/oxidation