8.35 g of Al2(SO4)3
3.8 g of FeSO4
Answer:
Yes.
Molecules always move in most objects, but in solids, they are extremely slow. Liquids move slower than gases, but move more than solids.
Molecules do move in a liquid, as they are free to slide past each other and change neighbors due to their mutual attraction. This allows liquids to flow and take the shape of their containers. The speed of this movement can depend on the mass of the molecules - lighter ones move and diffuse faster.
Yes, indeed, molecules do move in a liquid. This is due to the fact that liquids are typically in a more energetic state in which their particles can slide past one another and change neighbors. However, these particles remain closely held together by their mutual attraction which maintains the liquid's lack of shape conformity.
In liquids, unlike solids, the atoms or molecules are free to move around, which contributes to them being classified as a type of fluid. Due to their capacity to flow and rearrange their molecular structure, liquids deform easily when under stress. Once the force is removed, they don't return to their initial form, which is evidenced when a liquid takes the shape of a container it's put in.
Finally, the movement of these molecules is also somewhat dependent on their mass. Heavier molecules tend to move slower and are therefore slower to diffuse. In contrast, lighter molecules tend to move and diffuse faster.
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The percentage composition of a substance is determined to analyze how much of an element is present in the substance and and why they needed.
The percentage composition of a compound or element in a mixture is the ratio of mass of the element to the total mass multiplied by 100.
here are many scenarios in daily life where calculating the percentage composition of something may be useful, such as:
Cooking and baking: When following a recipe, it may be necessary to calculate the percentage of ingredients used in a recipe to adjust the quantities.
Nutrition: When tracking your diet, you may need to calculate the percentage composition of macronutrients like protein, carbohydrates, and fat.
Finance: When creating a budget, you may need to calculate the percentage of income allocated to different expenses, such as housing, transportation, and food.
Chemistry: In chemistry, calculating the percentage composition of a compound is an essential step in determining its chemical formula and properties.
Manufacturing: In manufacturing, calculating the percentage composition of raw materials and finished products is important for quality control and cost analysis.
Medicine: In medicine, calculating the percentage of drugs in a medication is essential for prescribing the appropriate dose.
These are just a few examples, but there are many other scenarios where calculating percentage composition is useful.
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Answer:
A mixture is physical, while a compound is chemical.
Explanation:
A mixture is a combination of two or more substances that are physically mixed together. The components of a mixture can be easily separated from one another by physical means, such as filtration or evaporation. The substances in a mixture retain their individual properties and do not chemically react with one another. For example, a mixture of salt and sand can be separated by dissolving the salt in water and then filtering the mixture to remove the sand particles. Each component of the mixture retains its own properties throughout the process. On the other hand, a compound is a substance that is made up of two or more different elements chemically combined in fixed proportions. The components of a compound are held together by chemical bonds, resulting in a new substance with different properties from the original elements. Compounds cannot be easily separated into their individual components by physical means. For example, water (H2O) is a compound made up of hydrogen and oxygen. The elements hydrogen and oxygen chemically react to form water, and it is not possible to separate the hydrogen and oxygen in water by physical means alone. In summary, a mixture is a physical combination of substances that can be easily separated, while a compound is a chemical combination of elements that cannot be easily separated. Mixture components retain their individual properties, while compounds have properties different from their component elements.
b. tetraclinic
c. tetragonal
d. orthorhombic
Answer:
B- Tetraclinic
Explanation:
According to the similarity of their symmetry elements, thirty-two classes are grouped into seven crystal systems: isometric (cubic) system, tetragonal system, hexagonal system, trigonal system (subdivision of the hexagonal system, second North American school of crystallography). , called rhombohedral hexagonal system), orthorhombic system, monoclinic system and triclinic system. Applying the symmetry operations on all possible reticular planes (potential crystal faces) in the seven crystalline systems, according to the 32 symmetry classes, only 48 geometric shapes are possible to be obtained.
Tetraclinic is not one of the seven types of crystal.
The seven types of crystal are triclinic, monoclinic, orthorhombic, tetragonal, trigonal, hexagonal, and cubic while on the other hand, triclinic system is one of the structural categories in which crystalline solids can be assigned.
So we can conclude that Tetraclinic is not one of the seven types of crystal.
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