Answer:
Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density
Explanation:
Answer:
26.6 s.
Explanation:
For a zero order kinetics, the formula is:
[A] = [A₀] - kt
where,
[A] = amount pr concentration left
[A₀] = initial concentration or amount
k = rate constant
t = time
concentration = mole/volume
[A₀] = 0.5/2.0
= 0.25 M
[A] = 0.25/2.0
= 0.125 M
k = 0.0047 Ms⁻¹
t = ([A] - [A₀]/-k
= (0.125 - 0.25)/(-0.0047)
= 26.60 s.
the amount is reduced by half after 26.6 seconds
The empirical formula of this compound is 
<h3>Empirical formula </h3>
To calculate the empirical formula of a compound, the value of moles of each element is needed.
As we have the information of the mass value, we will use the molar mass expression, which corresponds to:





As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:


So, the empirical formula of this compound is
.
Learn more about empirical formula: brainly.com/question/1247523
Answer:
A
Explanation:
I would say A because the sun makes energy right so if you are looking for an arrow or arrows I would say A I hope this helps!! and have a great day or night