Answer:
Explanation:
50 * 10^100 is 50 googols in scientific notation... but
come on, who would write that in standard form...
Nuclear decay or radioactive decay is a process by which the nucleus of an unstable atom loses energy that is in terms of its mass. The radioactivity may cause an atom to lose whichever of its subatomic particles.
The explanation as why some of the atoms go through nuclear decay while others do not its because of the stability of some atoms. Atoms usually tend to follow octet rule, those which do not follow through this may experience the nuclear decay.
You need the heat of fusion of ice to solve this problem. <span>the heat of fusion of water = 334 J/g </span><span>
the formula to solve for heat is </span>q = m·ΔH<span>f</span>
just plug the values
q= (50.0 g) (334 j/g)= 16700 joules or 16.7 Kj
Answer:
first one is a second is c
Explanation:
Answer:
The empirical formula is C2H5O
Explanation:
Step 1: Data given
Suppose the mass of the compound = 100.0 grams
The compound contains:
53.31 % C = 53.31 grams C
11.18 % H = 11.18 grams H
35.51 % O = 35.51 grams O
Step 2: Calculate moles
moles = mass / molar mass
Moles C = 53.31 grams / 12.01 g/mol
Moles C = 4.439 moles
Moles H = 11.18 grams / 1.01 g/mol
Moles H = 11.07 moles
Moles O = 35.51 grams / 16.0 g/mol
Moles O = 2.22 moles
Step 3: Calculate mol ratio
We divide by the smallest amount of moles
C: 4.439 / 2.22 = 2
H: 11.07 / 2.22 = 5
O: 2.22/2.22 = 1
C2H5O
The empirical formula is C2H5O
