1.)A vacuum flask keeps its contents warmer or cooler than the surrounding environment for a length of time. It consists of two flasks, one inside the other, that connect at the neck. the space between the two flasks is completely empty of air

answeres
why does the design of the vacuum flask reduce heat transfer by conduction

a.one flask is smaller than the other flask

b. one flask is more reflective than the other flask

c.there is no air between the flasks

d.the two flasks do not touch each other except at the kneck

plssss help

1.D

2.B
3.D
4.C
5.A
6.A
7.D
8.D
9.A
10.B
11.C
12.C
13.C
14.B
15.B
These are the right answer no cap. hope this helps :D

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Here answers. . .

1) D
2) B
3) D
4) C
5) A
6) A
7) D
8) D
9) A
10) B
11) C
12) C
13) C
14) B
15) B