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devlian [24]
3 years ago
10

If you burn a piece of wood, it becomes a different substance. What type of

Chemistry
2 answers:
lbvjy [14]3 years ago
8 0

Answer:

B. Chemical property

Explanation:

zlopas [31]3 years ago
8 0

Answer:

B

Explanation:

a reaction has taken place in which you can't get back what you started with

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The addition of NaOH to water would result in which of the following?
EleoNora [17]

Answer:

A decrease in [H3O+] and an increase in pH (option a)

Explanation:

Equilibrium of water is shown in this equation

2H₂O  ⇄  H₃O⁺  +  OH⁻

When you add NaOH, you are modifying [OH⁻]

NaOH  →   Na⁺  +  OH⁻

In equilibrium of water, the [OH⁻] increases

2H₂O   ⇄   ↓  H₃O⁺   +   OH⁻  ↑

As the [OH⁻] increases, by Le Chatellier, the equilibrium tends to decrease [H₃O⁺].

If the [OH⁻] is higher, pH  is also high so the solution of water and sodium hydroxide would be totally basic.

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3 years ago
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