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What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
When chemical reactions occur energy is always absorbed?
No, chemical reactions can be endothermic or exothermic.
What helps chemical reactions occur?
Chemical reactions occur when reactant molecules collide with enough energy and proper orientation to overcome the activation energy barrier. Factors such as increasing temperature, using a catalyst, and adjusting reactant concentrations can all help facilitate chemical reactions by providing more energy for collisions or altering the reaction pathway.
What is the relationship between the temperature and the rate of chemical?
Heat energy is necessary for some chemical reactions to occur. Some chemical reactions are endothermic meaning they require or absorb energy for a chemical reaction to occur. Other chemical reaction are exothermic meaning they release energy when the chemical reaction takes place..
What facilitates chemical reactions by reducing the energy needed for it to occur?
A catalyst
What chemical reaction produces the sun and energy?
These are not chemical reactions but thermonuclear reactions.
What energy transformation can occur only in autotrophs?
light energy into chemical energy
When chemical reactions occur energy is always absorbed?
No, chemical reactions can be endothermic or exothermic.
What energy transformation occur in a battery povered toy car?
Chemical energy to mechanical energy.
Chemical reactions that release energy do if occur or don't?
These are called exothermic reactions.
What are the energy transformation that occur in lighted flashlight?
Chemical>light>Heat
Describe the role of energy in chemical reactions?
Energy is required to break bonds between atoms in reactant molecules, allowing them to rearrange into new products. This energy is called activation energy. Some reactions release energy, called exothermic reactions, while others absorb energy, called endothermic reactions. Overall, energy is essential for driving chemical reactions and determining whether they proceed or not.
Are chemical reactions that absorb energy will occur without a source of energy?
false
What type of energy transformation takes place in photosynthesis to occur?
light energy is changed into chemical energy.
Chemical reactions that absorb energy will not occur without a source of energy true or false?
This is true. Energy is required to begin all reactions.
What helps chemical reactions occur?
Chemical reactions occur when reactant molecules collide with enough energy and proper orientation to overcome the activation energy barrier. Factors such as increasing temperature, using a catalyst, and adjusting reactant concentrations can all help facilitate chemical reactions by providing more energy for collisions or altering the reaction pathway.
Is this true or false in a chemiccal change other forms of energy cannot be changed to chemical energy?
False. In a chemical change, other forms of energy, such as heat or light, can be changed into chemical energy. This transformation can occur during reactions where energy is either absorbed or released as chemical bonds are broken or formed.
