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1 year ago

A

Chemistry

1 answer:

Valentin [98]1 year ago

5 0

Answer:

A.) combustion

Explanation:

Combustion reactions are a specific type of redox reaction which always have the same general structure: CₓHᵧ + O₂ ---> H₂O + CO₂ + heat/light

Decomposition reactions are reactions which involve a molecule breaking down into smaller compounds/elements. They have the general structure: AB ---> A + B

Double replacement reactions are reactions in which the cation of one compound is swapped with the cation of another compound. They have the general structure: AB + CD ---> AD + CB

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Answer:

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Explanation:

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2 years ago

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05. When a gold pebble is placed in a graduated cylinder that contains 12.0 mL of water, the water level rises

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Answer:

142.82 g

Explanation:

The following data were obtained from the question:

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Next, we shall determine the volume of the gold. This can be obtained as follow:

Volume of water = 12 mL

Volume of water + gold = 19.4 mL

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Volume of gold = (Volume of water + gold) – (Volume of water)

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Finally, we shall determine the mass of the gold as follow:

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Cross multiply

Mass of gold = 19.3 × 7.4

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3 years ago

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Someone please help me!! I'll give brainlest!

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Answer:

Section Three

1. D

2. B

3. A

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