Match the reasons to the statements in the proof.

1. m∠1 + m∠5 = 180° and m∠1 + m∠4=180°
subtraction property of equality
2. m∠1 + m∠5 = m∠1 + m∠4
substitution
3. m∠5 = m∠4
if alternate interior angles equal, then lines are ||.
4. ray yz is parallel to ray uv
given

1. and ; given

2. ; substitution

3.; subtraction property of equality

4. Ray YZ is parallel to ray UV; if alternate interior angles equal , then lines are parallel.

Step-by-step explanation:

Given

To prove that YZ is parallel to UV.

Proof:

1.Statement: and

Reason; Given

2. Statement:

Reason: By using substitution property

3.Statement:

Reason: Subtraction property of equality.

4.Statement: Ray YZ is parallel to Ray UV

Reason: If alternate interior angles equal, then lines are parallel.

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.