Answer:
The correct option is: C ) 14.4 lb
Explanation:
The standard International unit of mass is kilogram, kg. Other commonly used units of mass are grams (g), tonne (t), pounds (lb).
The mass of 500 mL liquid mercury is 6.53 kg.
Since, 1 kg = 2.20462 lb ≈ 2.205 lb
Therefore, the mass of 500 mL liquid mercury in pounds = 6.53 × 2.20462 = 14.39619 lb ≈ 14.4 lb.
Answer:
tetrafluoroethane
Explanation:
Its an HCFC, which are the refrigerants that destroy the ozone layer.
I believe the correct answer from the choices listed above is option A. A direct relationship can be represented by the expression:
y/x = k
<span>A direct relationship is an expression between two numbers or other variables where an increase or decrease in one variable causes the same change in the other value.</span>
Answer:
D) sodium t-butoxide + bromomethane
Explanation:
The alkoxide ion is a strong nucleophile, that unlike alcohols, will react with primary alkyl halides to form ether. This general reaction is known as <em>the Williamson synthesis</em>, and is a SN₂ displacement. The alkyl halide must be primary so the back side attack is not hindered, and the alkoxide ion must be formed with the most hindered group.
The mechanism can be seen in the attachment.
Answer:
-41. 47
Explanation:
m = q / Cp x T
m = Mass
q = Energy (or joules)
Cp = Heat Capacity
T = Change in Temperature
Water's heat capacity is always 4.18.
This is the formula you'll need for change in temperature:
Final - Initial
So, 33 - 78 = -45
m = 7800 / 4.18 x -45
= -41.47
