0
When two substances react chemically to produce a new substance what is TRUE of the mass of the two substances compared to the mass of the new substance?
Wiki User
∙ 8y ago
Same. Mass is not changed.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What do you call the substance that reacts chemically with another to produce heat?
You think probable to a reactant.
Is it false that the odor of a substance is an example of a physical property?
This is a little more complicated than a straightforward yes or no. Smell in general is the result of a rather complicated physicochemical process in the nose. It is possible for substances that are not very similar chemically to produce quite similar smells, and it's equally possible for substances that are almost identical chemically to produce quite different smells. One good example is carvone: R-(-)-carvone smells like spearment, while S-(+)-carvone, chemically identical except for being the mirror image, smells like caraway.
Is an ammonia water an acid or a base?
Ammonia water is a base chemically, if it reacts with an acidic substance it will produce a salt that is dissolved in the water..
What properties of substances can you observe and how do these properties determine the usefulness or hazards of a substance?
You can observe physical, chemical, and characteristic properties of a substance and can be used to determine the usefulness of a substance by, giving us information about the substance usually using our 5 senses which are physical properties. Or being able to describe the substances ability to undergo changes to its composition to produce one or more new substances, chemical property. Or even just being able to identify whether or not the substance is pure or not can help us determine if the substance is hazardous or not. two other properties I did not mention were the qualitative and the quantitative properties.
Is a mixture a combination of two or more substances that are not chemically combined?
A mixture is what you get when you combine two substances in such a way that no chemical reaction occurs between the components and you can separate them again. Technically, the term "mixture" is used incorrectly when a recipe calls for you to mix, for example, flour and eggs. A chemical reaction does occur between those cooking ingredients. You can't undo it. However, mixing dry ingredients, such as flour, salt and sugar, does produce an actual mixture.
What are the substances needed for photosynthesis. what substance are produce during photosynthesis?
No
What do you call the substance that reacts chemically with another to produce heat?
You think probable to a reactant.
What produces substances that pollutes the ozone layer?
AC's etc produce that substance. The substance is CFC's.
What substance reacts with carbonates to produce carbon dioxide?
this website is stupid
Is it false that the odor of a substance is an example of a physical property?
This is a little more complicated than a straightforward yes or no. Smell in general is the result of a rather complicated physicochemical process in the nose. It is possible for substances that are not very similar chemically to produce quite similar smells, and it's equally possible for substances that are almost identical chemically to produce quite different smells. One good example is carvone: R-(-)-carvone smells like spearment, while S-(+)-carvone, chemically identical except for being the mirror image, smells like caraway.
What is the chemical reaction that combines two or more substances to produce another substance?
A synthesis reaction
Is an ammonia water an acid or a base?
Ammonia water is a base chemically, if it reacts with an acidic substance it will produce a salt that is dissolved in the water..
How does matter chemically change?
The chemical changes take place on moleculer space. A chemical change form (or) produce a new substance.
Ocean water is a complex substance made up of a variety of substances Which property of water helps produce salt water's composition?
Solvent Property
What properties of substances can you observe and how do these properties determine the usefulness or hazards of a substance?
You can observe physical, chemical, and characteristic properties of a substance and can be used to determine the usefulness of a substance by, giving us information about the substance usually using our 5 senses which are physical properties. Or being able to describe the substances ability to undergo changes to its composition to produce one or more new substances, chemical property. Or even just being able to identify whether or not the substance is pure or not can help us determine if the substance is hazardous or not. two other properties I did not mention were the qualitative and the quantitative properties.
What are three changes that could occur in a chemical reaction?
1 : pure Elements like Sodium and Chlorine chemically combine to form Salt...NaCl a new substance. 2: .Combustion of a fuel to produce new substances ...CO2 + H2O. 3: Chemical reaction between a metal and an acid... Iron (Fe) + Hydrochloric acid produced Iron Chloride (FeCl2) and Hydrogen gas. (H2). Fe(s) + 2HCl(aq) = FeCl2(s) + H2(g). (new substances).
Is Lightening a match a physical change?
No Physical changes are state changes such as freezing, melting, evaporation, condensation, boiling. Physical changes do not produce "new" substances. Lighting a match would be an example of a chemical change in which the substances on the match, and eventually the wood or paper of the match are chemically altered to produce water, carbon dioxide, and other "new" compounds.
