Chemistry
19.05.2020 07:35
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Hurry please Which of these compounds contains a metal? A. CO B. SiO C.HC D.HZr
Hurry please
Which of these compounds contains a metal?
A. CO
B. SiO
C.HC
D.HZr
Show Answers
A. CO
B. SiO
C.HC
D.HZr
CameronVand21
4,8(84 marks)
Letter C i think...
imalexiscv
4,6(42 marks)
Maybe it’s A
PS: Sorry if I’m wrong
PS: Sorry if I’m wrong
AldoRaine8074
4,7(11 marks)
208 g/mol and 87 g/mol
Explanation:
Number of protons = 82
Atomic mass = 126 + 82 = 208 g/mol
For ^{87}Sr
Number of neutrons = 49
Number of protons = 38
Atomic Mass = 49 + 38 = 87 g/mol
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