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In a fireworks show the fireworks explode giving off thr heat and light.Is it a physical or chemical change.?
The explosion of fireworks is a chemical change. This occurs because the combustible materials in the fireworks undergo a chemical reaction when ignited, resulting in the production of new substances, such as gases and light. The release of heat and light is also indicative of this chemical reaction. Physical changes, in contrast, do not involve the formation of new substances.
Do chemical equations show summaries of physical change?
Chemical equations show the identities of the substances involved in a chemical reaction and the ratios in which they react or are produced. They do not provide a summary of physical changes such as changes in state or appearance. Physical changes involve alterations in the physical properties of a substance without changing its composition.
How are chemical properties different from chemical changes?
The difference between a chemical property and a chemical change is that the change is how the property of the chemical changes when it undergoes a chemical reaction.
What is the difference between metals and metalloids?
Metals are the pure substances by and show only characteristic properties of metals while a metalloid is an element which show some properties of metals and some properties of non metals as Aluminium, Zinc and Tin.
What is the general name of the material which contain at least two pure substance And show the properties of their constituents?
The general name for a material that contains at least two pure substances and exhibits the properties of its constituents is a "mixture." Mixtures can be classified into homogeneous (uniform composition) and heterogeneous (distinct, separate components) categories. In a mixture, the individual substances retain their chemical properties, allowing for the characteristics of each component to be observed. Examples include air (a homogeneous mixture of gases) and salad (a heterogeneous mixture of various ingredients).
What is the relationship between the chemical properties of a substances and the chemical changes of a substances?
The chemical properties of an object show what a chemical change did to that substance.
Does the release of the scent perfume from a bottle show a chemical change?
No. It is a physical change. Substances are only move from inside a container to outside it, the identity of the substances does not change.
What is the relationship between the chemical properties of a substance and the chemical change of substance?
The chemical properties of an object show what a chemical change did to that substance.
What is the purpose of adding an indicator to an unknown solution?
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
Which substances will show the smallest change in temperature when equal amounts of energy are absorbed?
Substances with high specific heat capacities, such as water, will show the smallest change in temperature when equal amounts of energy are absorbed. This is because these substances can absorb a lot of heat energy without a significant increase in temperature.
To show the symbol for the Euro instead of the dollar sign change the blank properties?
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In a fireworks show the fireworks explode giving off thr heat and light.Is it a physical or chemical change.?
The explosion of fireworks is a chemical change. This occurs because the combustible materials in the fireworks undergo a chemical reaction when ignited, resulting in the production of new substances, such as gases and light. The release of heat and light is also indicative of this chemical reaction. Physical changes, in contrast, do not involve the formation of new substances.
Do chemical equations show summaries of physical change?
Chemical equations show the identities of the substances involved in a chemical reaction and the ratios in which they react or are produced. They do not provide a summary of physical changes such as changes in state or appearance. Physical changes involve alterations in the physical properties of a substance without changing its composition.
Chracteristics of homologous series?
1. They have the same general formula 2. They have similar chemical properties 3. They show a gradual change in their physical properties.
How are chemical properties different from chemical changes?
The difference between a chemical property and a chemical change is that the change is how the property of the chemical changes when it undergoes a chemical reaction.
Why wouldn't the temperature of a substance change when heated or cooled?
There are two points for most substances where a phase change takes place. The energy used to rearrange molecules, called the heat of entropy, must be added or removed before the phase can change. The substances show little or no temperature change at some point in this process.
What are all the products that a black light will show?
A black light will show fluorescent substances that emit visible light when exposed to ultraviolet (UV) light. This includes items like highlighters, certain fabrics, some minerals, and bodily fluids (such as urine). It will not reveal all substances, but only those with fluorescent properties.
