0
Substances are changed into different substances when bonds break and form during?
Wiki User
∙ 11y ago
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What substances influence other molecules without being changed themselves?
I think what you are looking for is a catalyst. A catalyst lowers the energy or activation for a reaction, allowing it to happen faster. During the reaction nothing actually happens to or changes the catalyst.
What are goggles used for in a science lab?
To protect the eyes from harmful substances o chemicals that they may be in contact with during a lab
How does large variations between day and night temperatures cause weathering?
During the warm day, things expand from the increased heat. During the cold night, things contract as heat is lost. This process of expansion and contraction creates cracks and other stress points that cause weathering.Hence the temperatures cause weathering. Note: There are few substances that this expansion and contraction can be seen with the naked eye, but even the minute changes cause weathering, and when substances like water get into the microscopic cracks then freeze, it magnifies the effects as water expands when it freezes while other substances contract when they cool down.
What is the new substances that are formed during physical change?
in a physical change, no new substance is formed. for example liquid water. You freeze it, it becomes ice. when you boil it, it evaporates into steam. HOWEVER. Steam, ice, or liquid, it is STILL water. You only form new substances in chemical changes: cooking/burning food, reacting chemicals etc. : )
Is plastic a condoctor?
The term plastic has a broad definition as regards materials. There are thousands of plastics. We often think of plastics as organic polymers, and we will generally find that these materials are not good conductors. Different substances added to plastics during production can change this, but we usually find that plastics do not support current flow, and, therefore, might best be considered insulators rather than conductors.
How is chemical change different from physical change?
During a chemical change the nature of substances is changed.
What is the term for the substances that are changed during chemical reaction?
You think probable to the reactants.
What is the term for substances that are changed during a chemical reaction?
You think probable to the reactants.
What are some substances that have the explosive sign?
different reactions during explosions
Why do different substances require different amount of heat energy during melting?
due to different melting point...
Why do the pigments separate during column chromatography?
Because the retention coefficients of different substances are also different.
When new substances are formed from existing substances during a chemical reaction they are known as?
Products.
What new substances are formed during a chemical reaction?
The new substances formed during a chemical reaction are called Products.
What happens during endocytosis and exocytosis how are they different?
substances move. endo folds in , and exo exits
What substances during chemical reactions are involved?
The initial substances in a chemical reaction are called reactants.
What substances are nedded for cellular respiration to take place and what substances are during cellular respiration?
The substances that are needed for cellular respiration are glucose and oxygen. During cellular respiration, the cells convert food into usable energy.
What are the substances needed for photosynthesis and what substances are produced during photosynthesis?
CO2 and water is needed. Oxygen and glucose are produced
