اسئله جات في الاختبار >> الي يدخل يدعيلي

[Dr.moody]

السلام عليكم


النموذج A :
1. si unit base
A. kilometer
B. geram
C. second
D. cloculs

5. Which of these quantities represents the largest mass?


A. 2.0 ´ 102 mg
B. 0.0010 kg
C. 1.0 ´ 105 mg
D. 2.0 ´ 102 cg دي الاجابه
. Which of these pairs of elements would be most likely to form an ionic compound?


A. P and Br
B. Cu and K
C. C and O
D. O and Zn
E. Al and Rb
8. Which is the correct formula for copper(II) phosphate?


A. Cu2PO4
B. Cu3(PO4)2
C. Cu2PO3
D. Cu(PO4)2
E. Cu(PO3)2