Workbook Answers 10.4

Section 10.4

A. Concept checking      p.31

False

True

True

True

B. Multiple choice           p.31

D

A

C

C

B

C. Matching                    p.32

(a)    ii

(b)    i

(c)    iv

(d)   iii

D. Question                     p.33

(a)    The gas is not hydrogen.

(b)    (i)

    

                (or other reasonable answers)

        (ii)    The gas is carbon dioxide.

(c)    Calcium carbonate