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4 years ago

The general format AB+CD→AD+BC represents a ____________ reaction.

Chemistry

1 answer:

geniusboy [140]4 years ago

3 0

The general format AB+CD→AD+BC represents are replacement reaction.

Explanation:

A replacement reaction transpires when elements rearrange positions in compounds. There are two kinds of replacement reactions: single and double.

A double replacement reaction happens when a pair of ionic compounds transactions. This creates a couple of new ionic compounds. A double replacement reaction can be described by the common equation:

AB + CD → AD + CB

AB and CD are the two reactant compounds, and AD and CB are the two product compounds that emerge from the reaction. Through the reaction, the ions B and D switch positions.

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Explanation:

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3 years ago

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natta225 [31]

Answer:

18,8kg of wood

Explanation:

The energy you need to to raise the temperature of 1000 kg of water from 25.0 to 100.0 °C is:

q = C×m×ΔT

Where: q is heat, C is specific heat of water (4,184J/g°C), m is mass in grams (1000x10³g), and ΔT is 100,0°C - 25,0°C = 75,0°C

Replacing:

q = 4,184J/g°C×1000x10³g×75,0°C

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3,14x10⁸J × (1kg / 16,72x10⁶ J) = 18,8 kg of wood are required

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