Explanation:
When two or more substances are mixed together in such a way that their particles are evenly distributed throughout the mixture then it is known as a solution.
Basically, a solution is a homogeneous mixture which can be present in any phase.
A solution contains both solute and solvent.
A colloid is defined as a substance in which solute particles are microscopically distributed throughout the solvent. In a colloid both solvent and solute are present in liquid phase.
Hence, a solution can be easily distinguished from colloids.
Therefore, we can conclude that following statements about solutions are true:
- They contain solutes and solvents.
- Their particles must be evenly distributed.
- They may contain solid, liquid, and gas simultaneously.
- They are always easy to distinguish from colloids.
- They are homogeneous matter.
Halogens
Explanation:
Halogens are a group of non-metals located in the seventh group on the periodic table. The will only gain one electron during a chemical reaction.
- Halogens have a seven electrons in their outermost shell.
- To complete the number of electrons in this shell, they need to gain an additional electron.
- One more electron makes the halogen similar to the corresponding noble gas which is very stable.
- Halogens are very reactive groups of elements and are highly electronegative.
- They have a high affinity for electrons.
- These elements are fluorine, chlorine, bromine, iodine and Astatine.
learn more:
Halogens brainly.com/question/6324347
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I would say the second option
Hope this helps *smiles*
Answer:
molar mass CO = 28.01 g/mol
3.45 x 10^2 x 28.01 =9.66 x 10^3 g
mass Zn = 2.45 x 10^-2 x 65.39 g/mol=1.60 g => 1.60 x 10^0
Explanation:
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