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What else can I help you with?
What determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
What word equation to explain why the mixture fizzed when the reaction took place?
The fizzing in the mixture occurs due to the reaction of an acid with a carbonate or bicarbonate. The word equation for this reaction can be expressed as: Acid + Carbonate → Salt + Water + Carbon Dioxide (gas). The production of carbon dioxide is what causes the fizzing or bubbling observed during the reaction.
When CO2 mixes with limewater how do you know a chemical reaction took place?
When CO2 reacts with limewater (calcium hydroxide), the solution turns milky due to the formation of calcium carbonate, which is insoluble and precipitates out. This indicates a chemical reaction has taken place as a new substance with different properties has formed.
What are 4 signs that a physical reaction took place?
A change in state. It can always be changed back into its origanal state. (Ex. Melting, boiling, evaporation, freezing) Other ex. melting butter, shredding paper, mowing the grass, or liquid water to ice
According to the article the aftermath Which of these took place in New Orleans in the aftermath of hurricane Katrina?
Rioting and looting took place. Apex
If you were holding a beaker in which an exothermic reaction just took place would the beaker feel hot or cold?
the beaker would feel hot
What is the compound deposited on the inside of the beaker?
The compound deposited on the inside of the beaker is likely a precipitate formed from a chemical reaction that took place in the beaker. It could be a solid formed from the mixing of two solutions that reacted with each other. Further analysis would be needed to determine the specific compound.
Jayne's science teacher mixed a clear liquid with a blue liquid in a beaker. After a few minutes there was a white solid at the bottom of the beaker. What is most likely true about the white solid?
The white solid is likely a precipitate formed from a chemical reaction between the clear and blue liquids. It may have separated out due to being insoluble in the mixture. Analyzing the properties of the white solid could help identify the reaction that took place.
What is the chemical reaction that took place in heating a sugar?
caramelization :D
What are the chemical reaction that took place to make Colgate toothpaste the product?
taulom
How an element produce heat?
A chemical reaction took place creating a new element.
What determine whether a reaction took place?
Use the following equation: delta G = delta H - T*deltaS. A reaction is spontaneous if delta G is negative. A reaction will always be spontaneous (under any temperature) only if the change in enthalpy (delta H) is negative and the change in entropy (delta S) is positive. If this is not the case, the reaction will only be spontaneous (negative delta G) for a range of temperatures (or could be always non-spontaneous)
How would one be able to tell if a more vigorous reaction took place with strong acid than with vinegar?
Conduct the experiment in two insulated beakers and insert a thermometer in both. To each separate beaker add the same substance, for example, limestone and then add vinegar to one beaker and a strong acid such as HCl to the other. Measure the time and temperature of both. You should see a much greater and quicker rise in temperature with the strong acid.
What does Macbeth reaction indicate about his character?
I think that it would be that killing Duncan was something hard for him that he took it to heart since it wasn't so easy to do.
What evidence do you have that a chemical reaction took place?
Evidence of a chemical reaction includes the formation of a new substance with different properties, changes in color, the release of gas or heat, or the formation of a precipitate. Additionally, changes in mass due to the rearrangement of atoms in the reactants can also indicate a chemical reaction has occurred.
How might a thermometer help you decide if there was any chemical change on mixing iron and charcoal?
For a chemical change to occur, there must be a chemical reaction. A chemical reaction would be either endothermic (uses energy, mostly heat), or exothermic (produces energy, again mostly heat). Any change in temperature of the reactants, as measured by a thermometer, will tell you not only ifa chemical reaction occurred, but also which kind of chemical reaction. No temperature change usually indicates that no reaction has occurred, a decrease in temperature would indicate an endothermic reaction, while an increase in temperature would indicate an exothermic reaction.
A reaction to the draft law?
Draft Riots took place in some northern cities, the worst in New York City
