To calculate the molecular formula, convert the mass ratio into molar ratio as follows:
mass ratio of O:C=2:1
molar mass of carbon is 12 g/mol and that of oxygen is 16 g/mol thus, number of moles can be calculated as follows:
n=\frac{m}{M}
calculating ratio,
O:C=\frac{2 g}{16 g/mol}:\frac{1 g}{12 g/mol}=\frac{1}{8}:\frac{1}{12}=12:8=3:2
thus, molecular formula will be C_{2}O_{3}
C because ships and other boats has underwater microphones underwater because on most cargo ships the engine is to loud so they use microphones underwater to detect torpedos so your answer is C
B because it has a lower activation energy
Answer:
ionic compound
Explanation:
that is the answer if you meant what type of compound.
D. 350 J
Explanation:
Given parameters:
Force of pull = 70N
Distance = 5m
Unknown:
Workdone on the box = ?
Solution:
Workdone is defined as the force applied on a body to move it through a distance.
Work done = Force x distance moved
Work done = 5 x 70 = 350J
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