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Can you determine the identity of an unknown substance by calculating its density and observing chemical reactions?
Yes. You can divide the mass by the volume to find its density. Density is a property that can identify a substance.
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No, you cannot! Density is not a property that can identify a substance unless you know that it is pure.
All you can do is with mass and volume is determine the density of the substance, which could be a mixture. For example, sodium has a density of 0.97 g/cc and osmium a density of 22.6 g/cc. These two metals can be combined in various proportions to give an alloy with a density with any value between the two given numbers. I am not sure how stable such an alloy might be but the point is that you could make an alloy with the same density as tin, or iron, or lead or bronze.
What else can I help you with?
What does the density of a substance determine?
It determines the mass of the substance per unit volume.
When using a water bath to determine the boiling point of a substance the substance's boiling point must be what?
Below 100 °C.
What is a change that alters the form or appearance of a substance but does not make it into other substance?
It is considered a physical change. A chemical change involves chemical reactions that change the substance into another substance. A physical change typically only modifies the form or phase.
What is some information about Neutralization reactions?
Neutralization occurs when an acid reacts with an alkali to make a neutral substance pH 7.
A substance which helps a reaction to take place but that does not take an active part is a?
A substance which helps with chemical reactions, by making them possible at all, or reducing the effort required, is a catalyst.
Why are moles used in chemistry and how do they help in measuring and calculating chemical reactions?
Moles are used in chemistry to measure the amount of a substance in a reaction. They help in calculating chemical reactions by providing a way to convert between the mass of a substance and the number of particles it contains. This allows chemists to accurately determine the quantities of reactants and products involved in a reaction.
How can the chemical properties of a substance the Determine?
By observing how it reacts with other substances
What is the formula for calculating the melting point of a substance?
The formula for calculating the melting point of a substance is not a simple mathematical equation, as it depends on various factors such as the chemical composition and structure of the substance. The melting point is typically determined experimentally by heating the substance and observing the temperature at which it changes from a solid to a liquid state.
How do scientific tests help determine the properties of substance?
Scientific tests can help determine substances that appear similar but react differently under the same circumstances. By observing the reactions of the substance using an experiment, you can determine what that substance is made from.
Why is stoichiometry used for?
Stoichiometry is used to determine the quantities of reactants and products in a chemical reaction based on the law of conservation of mass. It helps in calculating the amount of a product that can be obtained from a given amount of reactants and vice versa. Stoichiometry is essential for understanding and predicting chemical reactions in terms of quantities.
How do you determine the identity of an unknown substance by observing its mass and volume?
All you can do with mass and volume is to determine the density of the substance. density = mass / volume or p=m/v after you determine the density, you can look on any density table and find the substance you are looking for. good look. -julio
How can you see if a substance has undergone a chemical change?
You can determine if a substance has undergone a chemical change by observing specific indicators, such as the production of gas (bubbles), a change in color, the formation of a precipitate, or a change in temperature (exothermic or endothermic reactions). Additionally, if the original substance cannot be easily recovered or transformed back into its initial state, it is likely that a chemical change has occurred.
What is a stoichiometry used for?
Calculating the mass of a product from the number of moles of reactants~ Apex ^^ these two are wrong
How can one find equivalents in chemistry?
To find equivalents in chemistry, you can use the concept of molarity. Molarity is a measure of the concentration of a solution, which is the amount of a substance dissolved in a given volume of solvent. By calculating the molarity of a substance, you can determine the number of equivalents present in a solution. This allows you to compare different substances and their chemical reactions based on their equivalent amounts.
How can one test an unknown substance to identify it?
To identify an unknown substance, one can conduct tests such as spectroscopy, chromatography, and chemical reactions to determine its properties and composition. These tests can help determine the substance's characteristics and compare them to known substances for identification.
What can be used to indentify a substance?
Any characteristics you can determine by your 5 senses plus any chemical reactions it makes.
How can one determine the water potential of a substance?
To determine the water potential of a substance, one can use the formula: water potential pressure potential solute potential. Pressure potential is the physical pressure exerted on the water, while solute potential is the effect of solutes dissolved in the water. By calculating these two components, one can determine the overall water potential of a substance.
