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What kind of bond does a exothermic reaction have?
Whether a reaction is exothermic or endothermic is not dependent upon the type of bond. Exothermic reactions can involve ionic or covalent bonds. When an ionic substance dissolves, it is often an exothermic reaction, as are many reactions involving covalent bonds, such as combustion.
What type of reaction is involved in many of the chemical reactions of photosynthesis?
Many of the chemical reactions in photosynthesis are redox reactions, involving both reduction and oxidation processes. In photosynthesis, carbon dioxide is reduced to sugars, while water is oxidized to produce oxygen.
Is an enzyme consumed in a reaction?
No, enzymes are not consumed in a reaction. Instead, they facilitate and speed up chemical reactions by lowering the activation energy required for the reaction to proceed. Enzymes remain unchanged and can be used repeatedly.
What type of protein speeds chemical reactions?
Enzymes are proteins that speed up chemical reactions in the body by lowering the activation energy needed for the reaction to occur.
What type of reaction occurs when one compound takes the place of another compound in the reaction?
A single-replacement reaction
A type of reaction involving a chemical change?
Rusting
Type of reaction involving elements bonding into new substance with new properties?
Chemical
Is melting a type of Chemical change?
no- melting is not a chemical change. It is merely a change in state of the same substance not a chemical reaction.
When paper changes from yellow to brown in sunlight what type of change occurred?
A chemical change. Color change is a good indicator of a chemical change.
Why is burning paper considered as a chemical change?
the paper undergoes combustion, a type of chemical reaction
What type of energy change associated with chemical reaction between magnesium and hydrochloric acid?
This reaction is exothermic.
When 2 or more atoms combine to form a new compound you have what type of change or reaction?
This is a chemical reaction.
What type of change was the magnesium reaction?
The magnesium reaction is a type of chemical change. In this reaction, magnesium reacts with oxygen to form magnesium oxide, resulting in a transformation of the original substances into new products with different chemical properties. This change is characterized by the breaking and forming of chemical bonds, indicating that a new substance has been created.
What type of change is it when you heat a mixture of powdered iron and sulfur iron?
The change is a chemical change known as a chemical reaction. When heated, the iron and sulfur react to form a new compound called iron sulfide.
What type of change had to happens for elements to form water?
A chemical reaction/bond.
Is making salt by mixing sodium and chlorine together a physical or chemical change?
It is a physical change because the reaction can easily be reversed and no heat is involved.
When wood is burned heat ash and smoke are produced describe this reaction and explain what type of change is occurring?
Burning wood is a chemical reaction where the wood combines with oxygen in the air to produce heat, ash (carbon residue), and smoke (gaseous byproducts). This is a chemical change because the wood undergoes a chemical reaction to form new substances.
