The mass ratio of potassium and selenium in the given compound is equal to 1 : 2.
The mass ratio also known as the percent composition by mass defines the proportion of a particular compound that consists of the constituent elements of that compound.
The percent composition by mass of a constituent element of a compound can be determined by the division of the mass of that element by the molar mass of the compound, followed by its multiplication by 100.
According to the law of constant proportion, a pure compound is always made up of the same elements combined together in a fixed proportion by weight.
Given the mass of the potassium (K) in the compound = 39 g
The mass of selenium (Se) in the compound = 78
The mass ratio of K and Se is 39 : 78
The simplest form of the ratio of potassium and selenium is 1 : 2.
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The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. .
The three-dimensional geometry of the atoms in the molecule
The ionic charge on each atom within the molecule
The way atoms share electrons to be connected to one another within the molecule
Answer:
The total electron configuration of each atom in the molecule
Explanation:
Electron distribution into energy levels or sublevels of atoms can be shown with different notations or electronic configuration. One of them is the lewis dot structure.
The Electron Dot Notation or Lewis Dot structure is a notation which shows only the chemical symbol of the element surrounded by dots to represent the valence electrons. The chemical symbol stands for the nucleus and all electrons except the valence ones. The dots are arranged at the four sides of the symbol in pairs called lone pairs Those that are unpaired are called odd electrons.
Genetic diversity, as reflected in a diverse gene pool, is crucial for a species' survival and adaptation. It helps create a range of physical and chemical traits, enhancing the ability of a species to survive in changing environments. This also has potential benefits for humans, such as in the development of medications.
Having a diverse gene pool is crucial for the survival and adaptation of a species. Genetic diversity refers to the diversity of alleles and genotypes within a population, with greater diversity offering a higher potential for adaptation. This is because genetic diversity results in a wider range of physical and chemical traits, which increases the chances of some individuals in a species being able to survive in changing environmental conditions.
For example, species undergoing sexual reproduction create offspring with diverse phenotypes, providing an advantage in unstable or changing environments. This diversity is often increased intentionally in species breeding programs in zoos and nature reserves to maintain phenotypic diversity and minimize the risks of inbreeding, which can lead to harmful genetic mutations. Conversely, methods such as self-pollination lead to less genetic diversity as genetic material from the same plant forms the zygote.
Furthermore, greater genetic diversity often translates into chemical diversity, as genes code for proteins and influence metabolic processes. Different species produce various chemicals in their cells, which not only help ensure their survival and reproduction, but also carry potential benefits for humans, such as the development of medications from these cellular products and byproducts.
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