Explanation:
Reaction equation showing alpha decay in Uranium-238 is as follows.
It is known that an alpha particle is basically a helium nucleus and it contains 2 protons and 2 neutrons.
Symbol of an alpha particle is 
.
As atomic mass or weight is the sum of total number of protons and neutrons present in an atom.
Hence, the atomic weight of the alpha particle is (2 + 2) = 4.
Answer:
It's the second one down.
Explanation:
Gold
Mass 197
Number of Protons: 79
Number of Neutrons: 197 - 79 = 118
Number of electrons: = number of protons = 97
Answer:
3.5 × 10³ J
Explanation:
The heat required to raise the temperature of the beer can be calculated using the following expression.
Q = c × m × ΔT
where,
Q: heat
c: specific heat capacity
m: mass
ΔT: change in the temperature
The volume of the beer is 35 mL and its density 1.2 g/mL. The mass of the beer is:
mass = volume × density
35 mL × (1.2 g/mL) = 42 g
Q = c × m × ΔT
Q = (4.186 J/g.°C) × 42 g × (20]°C - 0°C) = 3.5 × 10³ J
Answer:
the basic difference btw alkane and alkene is the presence of single and double bond respectively.first is saturated hydrocarbon while the latter is unsaturated
Hope this helps you buddy!!
