The answer is- Gasoline - homogeneous, Soil- heterogeneous, Cranberry juice - homogeneous and Salt water-homogeneous.
Mixture: The substance that has two or more elements or compounds mixed together without binding them chemically is known as mixture.
The constituents of mixture can be separated by various methods.
What are homogeneous and heterogeneous mixture?
- Homogeneous mixtures- Homogeneous mixtures are those that have same composition throughout its mass and there are no visible boundaries between its components.
- Heterogeneous mixtures- When solute particles are not mixed uniformly in the solvent particles, then a heterogenous mixture is obtained.
- Gasoline: It is a homogeneous mixture of various hydrocarbons.
- Soil: Soil is a heterogenous mixture and its various components can be seen clearly.
- Cranberry juice: It is also a homogeneous mixture as cranberry and water are mixed uniformly.
- Salt water is also a homogeneous mixture as salt and water are mixed uniformly.
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Answer:At 
food will cook in the pressure cooker set on high.
Explanation:
Standard atmospheric pressure 
= 14.7 Psi = 1.0001 atm (1 Psi=0.06804 atm)
Standard temperature
= 273.15 K
Highest pressure offered by pressure cooker: 12.8 Psi = 0.8709 atm
Pressure (
) inside the pressure cooker on the highest setting at temperature
:
= 1.0001 atm + 0.8709 atm = 1.8710 atm
According to Gay lussac law :
(at constant Volume)
At food will cook in the pressure cooker set on high.
Answer:
Explanation:
In one mole of liquid HF , no of molecules is 6.02 x 10²³.
Each molecule forms two hydrogen bonds on an average so no of hydrogen bonds per mol ih HF is
2 x 6.02 x 10²³.
= 12.04 x 10²³ .
In water no of hydrogen bonds per molecule of water is 4 . So in one mole of water no of hydrogen bonds is
4 x 6.02 x 10²³.
= 24.08 x 10²³ .
Answer: Radon-222 is generated in the uranium series from the alpha decay of radium-226, which has a half-life of 1600 years. Radon-222 itself alpha decays to polonium-218 with a half-life of approximately 3.82 days, making it the most stable isotope of radon. Its final decay product is stable lead-20
Answer:
To have the electronic configuration equal to 1s²2s²2p⁶3s²3p⁶4s²3d⁷, the chemical element must have an electrical charge equal to 27, that is, it must have 27 electrons, such as Cobalt (Co), for example.
Explanation:
The electronic configuration shown in the question above is known as the Linus Pauling distribution and represents the energy sub-levels that an electrically charged atom can have in relation to the amount of electrons it has.
The layers sub-levels are presented in the following order 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹º 4p⁶ 5s² 4d¹º 5p⁶ 6s² 4f14 5d¹º 6p⁶ 7s² 5f14 6d¹º 7p⁶. Where the small numbers represent the number of electrons in each sub-level and the large numbers represent the layers of electronic distribution.
Accordingly, we can see that an atom that has the configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁷ has 27 electrons, like Cobalt.
