Answer:
A) 45=x
B) Yes, since both A and B are 90°
Answer:
<h2>[-4, 6)</h2>
Step-by-step explanation:

Answer: m = 3.3 mol·58.326 mol = 192 g
Step-by-step explanation: molar mass of substance is
M= (24.31+ 2·1.008 + 2·16) g/mol = 58.326 g/ mol.
Amount of substance n = m/M and mass m = n·M
I think that the answer is b