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some chemical reactions take place when a chemical is added to a metal. sometimes the chemicl turns cloudy, it may fizz or a coat of black may appear on the piece of metal. hope this helps! :)
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∙ 14y ago
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What comes out of chemical reactions?
4 useful chemical reactions are: fermentation, smelting combustion and electrolysis
Are chemical changes irreversible If yes then what about the chemical reactions that are reversible Don't we say that all chemical reactions are chemical changes?
some chemical changes can be reversed but they are hard to reverse usually
What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
What describes the role of sunlight in chemical reactions?
it provides energy for some reactions to take place.
Is baking bread is a chemical reaction?
yes it involves some chemical reactions by yeast
What comes out of chemical reactions?
4 useful chemical reactions are: fermentation, smelting combustion and electrolysis
Are chemical reactions useful?
yes some chemical reactions are harmful to us. as digestion of food, photosynthesis, decomposition of organic waste are some examples of the useful chemical reactions.
What energy helps chemical reactions to form?
Heat helps chemical reactions to take place. Light can also cause some chemical reactions to take place.
What are some bad chemical reactions?
nothing
What are some of unwanted chemical reactions?
magazines
What is a sentence for reactions?
The students analysed the chemical reactions.Detectives watch for the suspect's reactions and body language when questioning them.
Are chemical changes irreversible If yes then what about the chemical reactions that are reversible Don't we say that all chemical reactions are chemical changes?
some chemical changes can be reversed but they are hard to reverse usually
What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
What are some things that need chemical energy?
Candle and all Chemical reactions
What are some dangerous chemical reactions?
acid and a base
Can energy be asorbed or released during chemical reactions?
Yes they can be either absorbed or release during chemical reactions. That is why some reactions explode or give off heat and some absorb heat making them cooler.
Why is energy necessary to chemical reactions and describe some common sources of energy.?
Explain why energy is necessary to chemical reactions, and describe some common sources of energy.
