Answer:
Claim 1: The South American Plate and African Plate experienced a rapid separation.
Claim 2: The South American Plate and African Plate separated slowly over time.
Explanation:
The heat exchange is quantified as Q = -8501.99 j. The specific heat for aluminum is listed at 0.902 j/g.°C with a sample mass of 23.984 g. The sample's temperature drops from 415°C to 22°C.
The answer is YES. Polar bonds will indeed form. A polar bond arises when two atoms engage in a covalent bond with unequal distribution of electrons, leading to a molecule exhibiting a slight electrical dipole, with one end carrying a modest positive charge and the other a modest negative charge.
Carbon disulfide (S=C=S) consists of a single carbon atom and two sulfur atoms. Carbon possesses 4 valence electrons, whereas sulfur has 6. In the bonding process, all four valence electrons from carbon participate, while each sulfur atom provides two electrons for bonding. Consequently, a total of 4 + 2(2) = 8 electrons are involved in bonding, while there are 8 electrons (four from each sulfur atom) that remain unbonded.
Response:The ethanol percentage is 0.1093%
Explanation:
As given:
t = time = 10 s
I = current = 320 mA
F = Faraday's constant = 96485.3365 C mol⁻¹
n = number of electrons transferred = 4
Molecular weight of ethanol is 46 g/mol
Question: What is the percent (by volume) of ethanol in the driver's breath, %E =?
First, calculate the ethanol mass:
The moles of ethanol:
Applying the ideal gas law formula:
Here:
T = 26°C = 299 K
P = 1 atm
Substituting in the values:
The percentage of ethanol:
%
