The answer is a. H+ and H2O. For a half-reaction in acidic solutions, elements that are not hydrogen and oxygen are balanced first. Then we add H2O to balance oxygen atoms and we add H+ to balance the hydrogen atoms. We do the same steps for basic solutions, but we also add hydroxide ions OH- in the latter part.
<span>The substance that is produced at the cathode during the electrolysis of a mixture of molten calcium bromide, cabr2(I), and molten magnesium iodide, mgi2(I), can be expressed as Ca2+ + 2eâ’ --> Ca. At the anode, the substance can be expressed as 2Brâ’ â’ 2eâ’ --> Br2. At the cathode for magnesium iodide can be expressed as Mg2+ + 2 eâ’ --> Mg, and 2 Iâ’ â’ 2 eâ’ --> I2 at the anode.</span>
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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Yes it’s correct.
An ionic bond is the transfer of electrons from a metal to a non-metal.
If that in the middle between the 10 and 24 is a caret, then I believe this is the work:
3.6 x 10^24 atoms Zn / 6.022x10^23 atom/mol Zn = 6 mol Zn
6 mol Zn x 65.36 g/mol Zn = 390 g Zn if you carry two significant figures with rounding at each step.
I believe that is correct as all the units cancel properly.
