Crust, Mantel, Outercore, Innercore
Answer:
D. 180.1 g/mol
Explanation:
Add up each of the masses of the elements in glucose and multiply them by the subscript number.
Carbon: 12.01 * 6 = 72.06
Hydrogen: 1.008 * 12 = 12.096
Oxygen: 16.00 * 6 = 96
72.06 + 12.096 + 96 = 180.156 g/mol ≈ 180.1 g/mol
*Molecular masses vary depending on which measurement / periodic table you use, so expect to be within a range, not exactly the same. My answer was closer to 180.2 g/mol, but it's still acceptable.
Answer and Explanation:
The IUPAC substitutive name of the major product when 2-methylbut-1-ene reacts are as follows
a) HCl = 2-chloro-2-methylbutane
b) HBr in the presence of peroxides = 1-bromo-2-methylbutane
c) H2O/ H2SO4 (dilute sulfuric acid) = 2-methylbutane-1,2-diol
d)BH3-THF followed by basic hydrogen peroxide = 2-methylbutan-1-ol
e) Chlorine in water = 2-chloro-2-methylbut -1 -ol
f) Bromine in carbon tetrachloride = 1,2- dibromo-2-methybutane
g) H2 in the presence of a metal catalys = isopentane or 2- methyl butane
D. CH and C2H2
Both compounds have the empirical formula CH. The trick is to see if you can multiply one compound by a number to turn it into the other. In this case, you can multiply CH by 2 to make C2H2.
Answer:
Mass of aluminium in sample = 3.591 g ≅ 3.6 grams
Explanation:
Given that, A sample of aluminum absorbs 50.1 J of heat, upon which the temperature of the sample increases from 20.0°C to 35.5°C.
the specific heat of aluminum is 0.900 J/g- °C
The relation between heat absorbed and change in temperature is given by, Q = msΔT.
where Q = heat absorbed
m = mass of the substance
s = specific heat of substance
ΔT = change in temperature
Now, in our case, Q = 50.1 J ; s = 0.900 J/g- °C; ΔT= 35.5-20 = 15.5°C
⇒ m = 
⇒ m = 
= 3.591 g ≅ 3.6 g
⇒ m ≅ 3.6 g
