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List two observations from the vinegar lab that imdicates a chemical reaction took place?
Bubbles
List three signs that could make you think a chemical reaction might be taking place?
Formation of bubbles or gas: Gas evolution can indicate a chemical reaction is occurring. Change in color: A sudden change in color could be a sign of a reaction, such as a shift from clear to cloudy. Temperature change: If the reaction generates heat (exothermic) or absorbs heat (endothermic), it can be an indication that a chemical reaction is taking place.
How does the activity series of metals reflect the stability of metals?
We arrange metals into an ordered list with the best reducing agent at the top and the worst reducing agent at the bottom. This is an Activity Series for metals. Metals near the top of the list give up electrons most easily. Those metals near the bottom of the list give up electrons with difficulty. Hydrogen, even though it is not a metal, can be placed in the list. Metals above hydrogen in the Activity Series will react with 1.0 Molar hydrochloric acid at room temperature. The Activity Series for metals is developed by experiment.A list of metals arranged in order of reactivity~APEX
Why is no chemical reaction needed to get gold?
Because Gold is an extremely unreactive metal, which means that it is not found in any compounds, e.g. Gold Oxide, but is only found on its own. So no chemical reaction is needed to obtain gold. Also, if you look at a metal reactivity series, gold will be at the bottom of the list.
List a balanced chemical equation for a biochemcial reaction and explain how it is used in your example above?
Glucose + Oxygen -> Carbon dioxide + Water This is the balanced chemical equation for the cellular respiration process in living organisms, where glucose and oxygen react to produce carbon dioxide and water, releasing energy that is vital for cellular processes.
List two observations from the vinegar lab that imdicates a chemical reaction took place?
Bubbles
What are the features of catalyst?
A catalyst alters (usually increases) the speed of a chemical reaction in which there is no net change in the amount of catalyst present after reaction is complete.
What is used for detection of chemical agents?
Quite a few things. There is detection paper--M8 comes in a booklet, M9 comes on a roll--and a very long list of chemical agent alarms.
The list that indicates which metals are able to displace other metals in a chemical reaction is called?
The list that indicates which metals are able to displace other metals in a chemical reaction is called the activity series. It ranks metals in order of reactivity, with more reactive metals displacing less reactive metals in aqueous solutions.
List three signs that could make you think a chemical reaction might be taking place?
Formation of bubbles or gas: Gas evolution can indicate a chemical reaction is occurring. Change in color: A sudden change in color could be a sign of a reaction, such as a shift from clear to cloudy. Temperature change: If the reaction generates heat (exothermic) or absorbs heat (endothermic), it can be an indication that a chemical reaction is taking place.
What is an endotherms?
An endothermic reaction is any chemical reaction that absorbs heat from its environment. Here's a list of examples of endothermic reactions. You can use these when asked to cite an example or to get ideas to set up a demonstration of an endothermic reaction or process.
Which action would cause the greatest increase in the speed of a chemical reaction?
the first answer someone provided: placing a reaction mixture in an ultrasonic shaker :) another answer: heating the mixture. another answer: adding a catalyzing agent. Please note that without specifying a LIST of possible actions in your question, it's not really possible for anyone to answer your question as stated. If you ask, "is it 'this', 'that', or 'another thing' ", then people could try to answer the question AS ASKED, by selecting one of the possible answers FROM THE LIST. When you ask 'which', there should be a list to select from, because 'which' generally means 'which of the following' or 'which of the previous'.
How does the activity series of metals reflect the stability of metals?
We arrange metals into an ordered list with the best reducing agent at the top and the worst reducing agent at the bottom. This is an Activity Series for metals. Metals near the top of the list give up electrons most easily. Those metals near the bottom of the list give up electrons with difficulty. Hydrogen, even though it is not a metal, can be placed in the list. Metals above hydrogen in the Activity Series will react with 1.0 Molar hydrochloric acid at room temperature. The Activity Series for metals is developed by experiment.A list of metals arranged in order of reactivity~APEX
Four clues to a chemical reaction?
list four possible clues to a chemical change
Is ch4 4cl2ccl4 4hcl endothermic?
You did not write any of those chemical names correctly (methane is CH4, not ch4) and all you did was list 4 incorrectly written chemicals, you did not give a chemical equation. Only a chemical reaction can be described as endothermic or exothermic; chemicals by themselves do not have those properties.
Does it cost to list a house?
No. What happens when you list with a Realtor/agent is that at the sale they get a % of the final sale price. Generally, it is about 10-20% that the Realtor/agent gets when the house closes.
Why is no chemical reaction needed to get gold?
Because Gold is an extremely unreactive metal, which means that it is not found in any compounds, e.g. Gold Oxide, but is only found on its own. So no chemical reaction is needed to obtain gold. Also, if you look at a metal reactivity series, gold will be at the bottom of the list.
