Hydrocarbons are separated from each other by a process called cracking distillation. a. True
b. False
Answers
Answer:
Correct answer is FALSE I just tested it and it came out right.
Explanation:
Related Questions
In a very violent reaction called a thermite reaction, aluminum metal reacts with iron (III) oxide to form iron metal and aluminum oxide according to the following equation:
A chemical change is a change in the ______ of a substance.a. composition c. temperature b. appearance d. melting point
One phosphorus, three chlorine, one oxygen
Find the normality of a solution containing 20g of H2SO4(sulfuric acid) per 500ml of solution. The molar mass of H2SO4 is 98 g/eq. H2SO4 has two replaceable H+.
B. The nucleus contains protons and neutrons and is orbited by electrons.
C. Protons, neutrons, and electrons occupy the same spaces within the atom.
D. Protons occupy the center of an atom, with neutrons and electrons circling.
Answers
This is the planetary model, which is so known nowadays, but it is not correct. The quantum model is based in orbitals (not orbits), which are regions around the nucleus where are the electrons, but they are not circling around the nucleus.
Answers
The study of chemicals and bonds is called chemistry.
The correct answer is absorbed or released.
What is energy?
- Energy is defined as the physical property which can be transferred from one body to another.
- There are various types of energy present. A few examples are as follows:-
- Heat energy, wind energy, light energy, etc.
Depending on the requirement of the solution, the compound can release energy to make a bond or can release energy to break the bond from the surrounding.
Hence, the correct answer is absorbed or released.
For more information about the energy, refer to the link:-
Answers
Explanation:
A mid-ocean ridge is a geological feature that records several important aspects of Earth's history and processes:
1. **Seafloor Spreading:** Mid-ocean ridges are where tectonic plates are moving apart. As new oceanic crust forms at these ridges through volcanic activity, it records the process of seafloor spreading. This process is a key component of plate tectonics, which explains the movement of Earth's lithospheric plates.
2. **Magnetic Reversals:** The seafloor at mid-ocean ridges contains bands of magnetic minerals that align with the Earth's magnetic field at the time the rock solidified. These bands provide a record of past magnetic field reversals, which is essential for understanding Earth's magnetic history.
3. **Geological History:** The rocks and formations found along mid-ocean ridges contain valuable information about the geological history of the ocean floor. This includes details about the composition of the Earth's crust and the minerals present in the oceanic lithosphere.
4. **Evidence of Hydrothermal Activity:** Mid-ocean ridges often host hydrothermal vent systems, where superheated water emerges from the seafloor. These vent systems record evidence of extreme environments and unique ecosystems that thrive in these conditions.
In summary, mid-ocean ridges record information about plate tectonics, magnetic field reversals, geological history, and hydrothermal activity, making them crucial sites for understanding Earth's dynamic processes and history.
2.specific Heat
3.thermal equilibrium
4.Heat of Fusion
Answers
Answer: Option (3) is the correct answer.
Explanation:
When two substances or objects at the same temperature do not exchange heat with each other then this state is known as thermal equilibrium.
Whereas latent heat is the release or absorption of energy at a constant temperature.
Specific heat is the amount of heat per unit mass necessary to increase the temperature by one degree Celsius.
Heat of fusion is the amount of energy required to change the state of matter or substance.
Thus, we can conclude that out of the given options, thermal equilibrium describes the point when two objects reach the same temperature and there is no longer a transfer of energy through heat.
Answers
= 3.50 x 6.022*10^23
= 21.077 x 10 ^23
Answers
Justification:
Radon (Rn) has atomic number 86. The electron distribution leads to the most stable configuration: the outermost shell (valence shell) is 6s² 6p⁶. That means that it has 8 valence electrons and, therefore, this shell is full. It will not accept more electrons ans will try to keep all of the ones it has.
This is the typical configuration of a noble gas. They are all in the group 18 of the periodic table (the last column). So, as the other noble gases, He, Ne, Ar, Kr, and Xe, Rn is very stable.