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Gas formation and precipitate formation are both examples of double replacement reactions in chemistry. In these reactions, two compounds switch ions to form new compounds, leading to the formation of a gas and/or a solid precipitate. Thus, they can be grouped together under the broader category of double replacement reactions.
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What observations does not indicate that a chemical change has occurred a. change of state b. formation of a precipitate c. absorption of energy d. release of a gas?
Change of state does not necessarily indicate a chemical change. It could be a physical change, such as melting or freezing, where the substance remains the same chemically. On the other hand, the formation of a precipitate, absorption of energy, and release of a gas are all indicators that a chemical change has occurred.
Any formation in which groundwater rises on its own under pressure is called?
artesian
Definition of colloidal precipitate in analytical chemistry?
A colloidal precipitate refers to a finely dispersed solid substance that forms during a chemical reaction, typically under conditions where the particle size is between 1-1000 nanometers. These particles may remain suspended in the liquid medium because of their small size, resulting in a cloudy or turbid solution. In analytical chemistry, the formation of colloidal precipitates can interfere with the accuracy of measurements and may require additional separation techniques for analysis.
Which type of volcano formation would typically be found under convergent boundary?
single
Why look for black precipitate in the butt instead of on the surface of an H2S test?
The black precipitate usually sink to the bottom which the reaction took place in. The reaction takes place at the bottom because it only occurs under anaerobic conditions, and it does not sink to the bottom as it only occurs at the bottom, not around oxygen at the top of the tube.
Is formation of a precipitate an indication of a chemical change?
One example is the reaction between the aqueous solutions lead nitrate, Pb(NO3)2 and potassium chloride, KCl. They react to form solid (a precipitate) lead chloride, PbCl2, and aqueous potassium nitrate, KNO3. The balanced equation is Pb(NO3)2(aq) + KCl(aq) ---> PbCl2(s) + KNO3(aq)
What are three observable signs to identify a chemical change?
chemical change doesn't apper outside easily as it is change in the chemical property of the element or the experiment done,specific methods can only be used to detect the chemical change for the substance under observation.
Which main section does the heading Short Answer fall under?
The heading "Short Answer" typically falls under the "Written Response" main section.
What is the difference between a heading and a caption?
A heading is like the name of a section. A caption is a description under a picture of what the picture is about.
Under what conditions does a precipitate form in a chemical reaction?
When a precipitate forms, cations and anions in aqueous solutions combine to form an insoluble ionic solid. This is specifically classified as a double replacement reaction and takes the form AB + CD --> AD + CB.
In what career do you design buildings?
this comes under the heading of "Architect"
This comes under a heading?
Sure! Please provide me with the heading or the specific topic you'd like me to address, and I'll be happy to help.
Under what heading did the social programs of the 1930s come?
new deal
Which main section does the heading short fall under?
Activities & Essays.
What is the Dewey decimal system for subject heading Victorians?
In the Dewey Decimal Classification system, books about the Victorians would generally fall under the category 941.081 – history of Victorian era in the United Kingdom.
What main section does the heading Declared Major fall under?
Educational Data
Reasons people travel can be classified under two heading what are they?
migration and pleasure !?!?
