Some observations:
- change of colour
- formation of a precipitate
- change of odor
- change of temperature
- release of a gas
- change of pH
- change of viscosity
etc.
Without seeing the drawing, it is difficult to pinpoint the exact issue. However, potential problems could include incorrect placement of reactants and products, missing or extra elements, incorrect chemical structures, or incorrect stoichiometry. The student should review the reaction equation and ensure that the drawing accurately represents the chemical reaction.
Since it is the heat from the bread that causes the butter to change form (melt), and be absorbed by the bread, this should be classified as a chemical reaction.
The reaction time of everyone is different. Being a college student doesn't play a role in your reaction time.
A student can identify a catalyst by observing its role in a chemical reaction, specifically noting that it increases the reaction rate without being consumed in the process. They should look for changes in reaction conditions, such as lower activation energy or altered reaction pathways, while measuring the time taken for reactants to convert into products. Additionally, the presence of a catalyst can often be confirmed by conducting experiments where it is added or removed, observing the resulting changes in reaction speed.
A student can use the keyword "heat" to determine if a reaction is exothermic by observing if heat is released during the reaction. If the reaction gives off heat, it is exothermic.
To determine if a reaction is exothermic, a student should use a thermometer to measure the temperature change during the reaction. If the temperature increases, it indicates that the reaction is exothermic, releasing heat.
The product is the result of a chemical reaction. A pretty uninspiring name.It may be of a similar form to the reactants, or it may have a different colour, or even form a precipitate in suitable circumstances.
science in middle school is preparing student to learn about medical stuffs engineering and chemical reaction stuffs that you going to need in high school or college
i am b pharma student interested to study ofter m tec chemical please help i am b pharma student interested to study ofter m tec chemical please help
The light DEPENDENT reaction is the first one - and it is, obviously, reliant on sunlight. The energy from the sunlight, along with water are converted into ATP (chemical energy) and electron carriers (NADPH). Basically, you haven't really formed any sugar in the light dependent reaction yet...you're just setting it up for the light independent reaction. (By the way, this reaction happens in the grana of the chloroplast.)The light INDEPENDENT reaction takes the energy and electron carriers from the previous reaction and uses them to turn carbon dioxide into glucose. This reaction doesn't need light...but it will cease if it uses up all the chemical energy. This reaction happens in th stroma of the chloroplast.Source(s):AP Bio student
please answer me for above question
To write a recommendation letter for a student, start by introducing yourself and explaining your relationship to the student. Then, highlight the student's strengths, accomplishments, and character traits. Provide specific examples to support your claims and explain why you believe the student is a strong candidate. Conclude by summarizing your recommendation and offering to provide further information if needed.