Chemistry, 31.01.2022 07:30 jaylan11brown
A 40 g block of ice is heated from -15°C to its melting point. After the block of ice
completely melts, it reaches a final temperature of 16.5°C. Calculate the amount of
heat involved in this process. Is this process endothermic or exothermic? Explain your
reasoning.
Answers: 2
Chemistry, 22.06.2019 15:20
Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.
Answers: 1
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Chemistry, 22.06.2019 21:30
Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet
Answers: 2
A 40 g block of ice is heated from -15°C to its melting point. After the block of ice
completely m...
English, 17.12.2020 17:30
History, 17.12.2020 17:30
Chemistry, 17.12.2020 17:30
English, 17.12.2020 17:30
Mathematics, 17.12.2020 17:30
History, 17.12.2020 17:30
Arts, 17.12.2020 17:30
Mathematics, 17.12.2020 17:30
Mathematics, 17.12.2020 17:30