Burning a piece of wood in fire can be best described as a

2 answers:

6 0

Burning a piece of wood in fire can best be described as a CHEMICAL CHANGE BECAUSE THE ATOMS IN WOOD AND OXYGEN ARE REARRANGED.

In chemistry, there are two types of change, these are chemical and physical changes. In physical change, no new substance is formed and the process is usually reversible. In chemical change, chemical reactions usually occur, new substances are formed and the process is not reversible. Burning of wood in air is a chemical change because the atoms of the wood and the oxygen atoms react together to form new substances and the reaction is not reversible.

pishuonlain [190]2 years ago

4 0

<span>Burning a piece of wood in fire can be best described as a chemical change.</span>

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Old photographic flashbulbs burn magnesium metal in a reaction that causes a flash of brilliant white light. A photographer woul

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Answer is: A. Chemical energy to electromagnetic energy and thermal energy.

Balanced chemical reaction: 2Mg(s) + O₂(g) → 2MgO(s) + energy.

This is chemical change (chemical reaction), because new substance (magnesium oxide MgO) is formed, the atoms are rearranged and the reaction is followed by an energy change (exothermic reaction because energy is released).

Chemical changes (chemical synthesis) is when a substance combines with another (in this example magnesium and oxygen) to form a new substance.

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2 years ago

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The Rydberg constant is 3.3 x 10 15 Hz. this value is also

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Answer:

Rydberg constant 3.3 x 10¹⁵ Hertz is equal to 1.090 x 10⁷ m⁻¹

Explanation:

Given;

Rydberg constant as 3.3 x 10¹⁵ Hz

1 Rydberg constant = 3.3 x 10¹⁵ Hz