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If two or more substances are combined what is always created?
When two or more substances are combined, a mixture is always created. In a mixture, the individual components retain their distinct properties and can often be separated by physical means. In some cases, if a chemical reaction occurs, new substances called products may be formed. However, the initial combination itself results in a mixture.
What property does the separation technique depend on?
The separation technique used depends on the differences in the physical or chemical properties of the substances being separated. Some common properties include size, solubility, boiling point, and density. By exploiting these differences, the technique can efficiently separate the substances.
You have two solid substances that look the same What measurements would you take and which tests would you perform to determine whether they actually are the same?
- chemical analysis of these substances - determination of some physical properties
Would it be possible for two pure substances to have exactly the same set of properties?
Not if they are solid substances (ie one is not hollow in the middle). That was how Archamedies worked out how to prove the gold crown was pure gold. The density of every substance (mass per unit volume) is unique. * * * * * Not so sure about the density of EVERY substance being different. Every PURE substance: probably yeas. But every substance? For example, the density of steel can be varied from 7.75 gcm-3 to 8.05 gcm-3, by varying the proportion of the other materials in the alloy. Presumably there are some other substances with a density in that range.
Is the difference between a pure substance and a mixture always easy to observe?
No, the difference between a pure substance and a mixture is not always easy to observe. While pure substances have definite chemical compositions and properties, mixtures consist of two or more substances physically combined. Some mixtures can be challenging to distinguish from pure substances based on visual observations alone.
Does the substances that take part in a chemical reaction keep their properties?
Some, but not all, substances do so. Such substances are known as catalysts.
What happens to the physical properties of substances when they are at room temperature?
At room temperature, the physical properties of substances can change. For example, some substances may melt, freeze, evaporate, or condense. These changes can affect properties like color, texture, and state of matter.
How do the properties of substances change when they are mixed together?
When substances are mixed together, their properties may change depending on the interactions between the molecules of each substance. This can result in changes in physical properties like melting point, boiling point, color, and solubility. In some cases, chemical reactions may occur, leading to the formation of new substances with different properties.
What are some examples of physical properties scientist use to tell the differences between substances?
Scientists may use physical properties such as density, melting point, boiling point, and solubility to differentiate between substances. These properties are unique to each substance and can be measured to help identify the composition of a material.
If two or more substances are combined what is always created?
When two or more substances are combined, a mixture is always created. In a mixture, the individual components retain their distinct properties and can often be separated by physical means. In some cases, if a chemical reaction occurs, new substances called products may be formed. However, the initial combination itself results in a mixture.
What are some physical properties are constant for pure substances?
This has lots of answers; some of them are: malleability chemical properties electrical properties color texture I suspect there are more because the size of something rarely changes the intrinsic properties of that something.
What are some ways that industries use physical properties to separate substances?
Industries use physical properties like boiling point or solubility to separate substances through techniques like distillation, filtration, and chromatography. These methods capitalize on the differences in physical properties between the substances to effectively separate them at a molecular level.
Do Substance in a mixture keep their own properties?
Yes, substances in a mixture retain their own properties. Each substance in the mixture maintains its chemical characteristics and can be separated by physical methods.
What is it called when one or more substances change into one or more new substances?
This could refer to a chemical transformation (chemical change), a chemical reaction, or spontaneous change. Some changes require another substance or substances to be mixed together. Some reactions will occur by themselves without any outside manipulation or stimulation.
What property does the separation technique depend on?
The separation technique used depends on the differences in the physical or chemical properties of the substances being separated. Some common properties include size, solubility, boiling point, and density. By exploiting these differences, the technique can efficiently separate the substances.
You have two solid substances that look the same What measurements would you take and which tests would you perform to determine whether they actually are the same?
- chemical analysis of these substances - determination of some physical properties
I Need to separate two substances in a compound how would you seaparared?
There are several methods to separate substances in a compound, depending on their properties. Some common methods include distillation (for separating liquids with different boiling points), filtration (for separating solids from liquids), and chromatography (for separating substances based on their differing properties). The choice of method depends on the specific substances and their physical or chemical characteristics.
