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What else can I help you with?
What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
When a nail is bent when hammered is it a chemical or physical reaction?
It is a physical reaction, this is because the nail is physically doing something
Differences between physical changes and chemical changes?
Physical changes are changes that affect the form of a chemical substance, such as changes in state or shape, without changing its chemical composition. Chemical changes, on the other hand, result in the formation of new substances with different chemical properties. Physical changes are usually reversible, while chemical changes are often irreversible.
Is burning newspaper a physical change?
Yes, burning newspaper is a chemical change because it undergoes a chemical reaction (combustion) that changes its chemical composition. The heat and flame produced during burning are evidence of this chemical reaction taking place.
What is meant by thermodynamics of a chemical reaction?
It refers to the energy changes that take place during a chemical reaction.
Why can't oil be used again?
It is burned, burning something is a chemical reaction, when something undergoes a chemical reaction its chemical make up changes. In this case though there is nothing left to reuse.
What changes can you observe when cemical reactions occur?
It depends on the chemical reaction. For example when you burn something it is a chemical reaction, but that is way different than if you mix baking soda and vinegar which is also a chemical reaction. It changes the matter into a different chemical matter make up of that substance.
What is a reaction in a chemical reaction in science?
A reaction in a chemical reaction refers to the transformation of one or more substances into new substances with different properties. This process involves the breaking and formation of chemical bonds between atoms or molecules. Energy changes may also occur during a chemical reaction.
Chemical change is what?
A process in which reactants are changed into one or more different products
What comes out of a reaction?
Chemical changes occur after a chemical reaction.
How is a chemical reaction different from a physical reaction?
A chemical reaction changes the actual chemical make-up of a molecule while a physical reaction only changed the physical state of a molecule, the atomic make-up in the molecule stays the same. (ex: H20(l) ---heat--> H20(g))
What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
What is the definition of reactants?
Something that reacts to another substance.
Is bananas turning black if you leave them in a warm cupboard for a week a chemical reaction and why?
Yes, it is a chemical reaction, because the colour of the banana has changed, which shows that a chemical reaction has taken place. Also, if the banana has gone black and turned bad, you can't change it back to it's original form, which proves that it is a chemical reaction and not a physical reaction. Remember - A chemical reaction has definitely taken place if : It's colour has changed A gas is given off There are energy changes Or, it can't be changed back to what it used to be! :) Hope this helps!!
Process which substances are changed into different substances?
Though a nuclear reaction could be the answer to this question, it is more probable that a chemical reaction is the change of one or more substances into a different substance or different substances. (The changes in nuclear reactions normally include only a single element.)Examples abound. The elements hydrogen (H2) and oxygen (O2) combine in a chemical reaction to form water (H2O) in the following familiar reaction:2H2 + O2 => 2H2OWhen ozone (O3) breaks down spontaneously, it forms oxygen in the following reaction:2O3 => 3O2
Does a chemical reaction cause chemical changes?
yes
Is reaction with acid a physical or chemical property?
A physical reaction is when no new substances are formed, there is a change of state eg ice melting to a liquid. A chemical change is when the reaction forms a new substance. eg gas bubbles. An acid reaction can be both. You need to look at the reaction taking place, look for change of state (physical) or any colour change or gas bubbles (chemical).
