When does a single replacement reaction occur?

Answer 1

A single replacement reaction occurs when an element reacts with a compound to produce a new element and a new compound.

A single replacement reaction occurs when an element reacts with a compound to produce a new element and a new compound.

There are two types of single replacement reactions:

A metal replaces another metal that is in solution:
#"A" + "BC" → "B" + "AC"#
Example: #"Zn" + "CuCl"_2→ "Cu" + "ZnCl"_2#

A halogen replaces another halogen that is in solution:
#"A" + "BC" → "C" + "BA"#
Example: #"Br"_2 + "2KI" → "I"_2+ "2KBr"#

To determine whether a given single replacement will occur, you must use an “Activity Series” table.

If the metal or the halogen is above the element it will replace based on the activity series, a single displacement reaction will occur.

Examples:

#"Mg" + "2HCl" → "H"_2 + "MgCl"_2# (#"Mg"# is above #"H"#)

#"Cl"_2 + "2NaBr" → "Br"_2 + "2NaCl"# (#"Cl"# is above #"Br"#)

#"Cu" + "AlCl"_3→ "no reaction"# (#"Cu"# is below #"Al"#)

The video below summarizes an experiment conducted to compare the activities of three metals (#"Mg, Cu"# and #"Zn"#).

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer 2

When one element in a compound replaces another, creating a new compound and a distinct element, this is known as a single replacement reaction.

Sign up to view the whole answer

By signing up, you agree to our Terms of Service and Privacy Policy

Sign up with email
Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

Not the question you need?

Drag image here or click to upload

Or press Ctrl + V to paste
Answer Background
HIX Tutor
Solve ANY homework problem with a smart AI
  • 98% accuracy study help
  • Covers math, physics, chemistry, biology, and more
  • Step-by-step, in-depth guides
  • Readily available 24/7