subject
Chemistry, 11.03.2021 20:30 whitakers87

Observe someone making a meal in your home. You can make something yourself! As the food is prepared, collect dat for two examples of changes in matter. Use the Changes in Matter guide to determine if your examples are physical or chemical changes. Your answer should include a description of each food preparation, as well as evidence for which type of change it is. You can use this format: Example 1: Type of Change: Evidence: Example 2: Type of Change: Evidence: Please help me. Will give Help

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 17:10
Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.
Answers: 2
question
Chemistry, 22.06.2019 08:00
Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?
Answers: 1
question
Chemistry, 22.06.2019 09:00
How are isotopes of the same chemical element alike? how are they different?
Answers: 1
question
Chemistry, 22.06.2019 09:00
Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset
Answers: 1
You know the right answer?
Observe someone making a meal in your home. You can make something yourself! As the food is prepared...
Questions
question
Mathematics, 11.03.2021 19:50
question
Social Studies, 11.03.2021 19:50
question
Mathematics, 11.03.2021 19:50
question
Mathematics, 11.03.2021 19:50
question
Mathematics, 11.03.2021 19:50
question
History, 11.03.2021 19:50
question
Mathematics, 11.03.2021 19:50