Question

1.hien tuong nao khong xay ra khi lam lanh chat long

a.khoi luong cua chat long khong doi

b.the tich cua chat long giam 

c.khoi luong rieng cua chat long giam

d.khoi luong rieng cua chat long tang

2.cau nao sau day noi ve su nong chay la khong dung?

a.moi chat nong chay o nhiet do xac dinh

b.trong khi nong chay nhiet do tiep tuc tang

c.trong khi dang nong chay nhiet do khong tiep tuc thay doi

d.khi da bat dau nong chay neu khong tiep tuc dun thi su nong chay ngung lai

Answer 1

2.)b

1.)c

Answer 2

1/b

2/c

 

Answer 3

1a

2achắc thế

 

Answer 4

1.b

2.a

Answer 5

1b

2c

Answer 6

1.a 2 .a

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Answer 7

1.b

2.c

Answer 8

1. c

2. b