Answer:
The last answer is right they get half of the mothers genes and half of the fathers genes.
2 and 3, because there are the protons and neutrons which have a greater mass than the electrons which are found in the locations 1 and 4.
Explanation:
The atom contains a nucleus, which is made from protons and neutrons, and electrons which are found around the nucleus.
The mass of the atoms is concentrated in the very tiny space represented by the nucleus. Of course the electrons have a mass too, but is very small compared to the protons and neutrons, and we usually neglect its mass.
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subatomic particles
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The heat lost by copper(ii) sulfate is equal to heat absorbed by water since the total energy in the system remains constant according to the law of conservation of energy.
<h3>How can the number of moles be determined?</h3>
The number of moles of a substance is determined using the formula below:
- Number of moles = mass/molar mass
Assuming the mass of copper(ii) sulfate used is <em>Mc</em>, number of moles of copper(ii) sulfate used is:
- Moles of copper(ii) sulfate = <em>Mc</em>/159.60 moles
The heat absorbed by water is calculated using the formula below:
- Quantity of Heat, H = mass × specific heat capacity × temperature change
mass of water <em>=</em><em> </em> 10 g
Let temperature change be <em>Tc</em>
Heat<em> </em>absorbed<em> </em>by water = 10 × 4.186 × Tc = 41
86Tc
The change in internal energy, ΔU of copper(ii) sulfate, is given as:
where:
Q = heat absorbed by water
W = work done by or on the system
The enthalpy of the reaction is given as:
- ΔH= energy released or absorbed/moles of copper (ii) sulfate
Therefore, according to the law of conservation of energy, the total energy in the system remains constant.
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Answer:
Partial pressure He → 0.96 atm
Partial pressure C₃H₆ → 1.18 atm
Explanation:
We apply the Charles Gay Lussac law, to solve this. Pressure varies directly proportional to absolute T°, when the volume keeps on constant.
P₁ / T₁ = P₂ / T₂
We convert the T° to absolute T°
55°C + 273 = 328K
-45°C + 273 = 228K
Total pressure = Sum of partial pressures
1.7 atm + 1.4 atm = 3.1 atm
When we apply the formula we would know the new total pressure
3.1 atm / 328K = P₂ / 228K
(3.1 atm / 328K) . 228K = 2.15 atm
As the moles has not been modified with the change of T°, we assume the mole fraction is still the same.
Mole fraction He = Partial pressure He / Total pressure
1.4 atm / 3.1 atm = 0.45
Mole fraction C₃H₆ = Partial pressure C₃H₆/ Total pressure
1.7 atm / 3.1 atm = 0.55
0.45 = Partial pressure He / 2.15 atm
Partial pressure = 0.45 . 2.15 atm → 0.96 atm
0.55 = Partial pressure C₃H₆ / 2.15 atm
Partial pressure = 0.55 . 2.15 atm → 1.18 atm
Answer:
A.) trans-2,3-dichloro-5-methyl-2-hexene
Explanation:
The proposed question and structure has been attached to this answer.
The<em> cis</em>- and <em>trans</em>- isomers are used to denote the alignment of the functional groups to the carbon chain side. From the diagram, we see that:
- the two chloro groups on the main compound are in opposite directions (-<em>trans</em>), and not the same sides (-<em>cis</em>)
- The bottom extended methyl group is on the 5th carbon as we count from left to right
- there's a total of 6 carbon atoms with 1 double bond on the second to third carbon.
Hence the name <u>trans-2,3-dichloro-5-methyl-2-hexene</u>
