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2 years ago

14

Match the causes with their effects

1 answer:

Lerok [7]2 years ago

8 0

What are the options?

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The change in an object's volume that occurs when heat is added is called

deff fn [24]

A. Thermal Expansion

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3 years ago

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Suppose that you melt 24 ml of ice. What is the volume of liquid water that results?

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The answer to this would be 22 mL

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3 years ago

The relationship between molecular velocities and temperature is a _____ relationship.

elixir [45]

The correct answer that would best complete the given statement above would be option 2. <span>The relationship between molecular velocities and temperature is a direct relationship. In other words, their relationship is directly proportional. Hope that this is the answer that you are looking for. </span>

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3 years ago

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What form of oxygen is not toxic to microorganism is it oh-?

Aleks04 [339]

The correct answer would be O
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3 years ago

Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be

Sphinxa [80]

Answer:

$P_4_{(I)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}$

Explanation:

The first step is:

$P_4_{(I)}+5O_2_{(g)}\rightarrow 2P_2O_5_{(g)}$

Second step is:

$P_2O_5_{(g)}+3H_2O_{(l)}\rightarrow 2H_3PO_4_{(l)}$

Multiplying second step by 2, and adding both the steps, we get that:

$P_4_{(I)}+5O_2_{(g)}+2P_2O_5_{(g)}+6H_2O_{(l)}\rightarrow 2P_2O_5_{(g)}+4H_3PO_4_{(l)}$

Cancelling common species, we get that:

$P_4_{(l)}+5O_2_{(g)}+6H_2O_{(l)}\rightarrow +4H_3PO_4_{(l)}$

6 0

3 years ago