What is the density of an object with a volume of 12 mL and a mass of 38g?
1 answer:
You might be interested in
Answer: There are atoms present in 0.500 mol of
.
Explanation:
According to the mole concept, there are atoms present in 1 mole of a substance.
In a molecule of there is only one carbon atom present. Therefore, number of carbon atoms present in 0.500 mol of
are as follows.
Thus, we can conclude that there are atoms present in 0.500 mol of
.
B. 11,540
<h3>Further explanation </h3>The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.
Usually radioactive elements have an unstable atomic nucleus.
General formulas used in decay:
T = duration of decay
t 1/2 = half-life
N₀ = the number of initial radioactive atoms
Nt = the number of radioactive atoms left after decaying during T time
Nt=25 g
No=100 g
t1/2=5770 years
Answer:
a) 0.210 j /k
b) 0.032 j/k
Explanation:
Find the attachment for solution
