Observations in the scientific method lead to questions which need answers. The hypothesis is a testable argument presented in scientific method to address a question. Experiments (often with controls and variables) are formulated in the experimental method for evaluating theories. Hope this helps ✨
Answer:
Explanation:
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In this case, according to the Charles' law as a directly proportional relationship between volume and temperature:
Thus, in order to compute the final volume, V2, we obtain the following expression:
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Answer:
Mass = 19.53 g
Explanation:
Given data:
Number of atoms of iron = 2.10 ×10²³ atoms
Mass of iron = ?
Solution:
The number 6.022 ×10²³ is called Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
1 mole contain 6.022 ×10²³ atoms
2.10 × 10²³ atoms × 1 mol / 6.022 ×10²³ atoms
0.35 mol
Mass of iron atoms:
Mass = Number of moles × molar mass
Mass = 0.35 mol × 55.8 g/mol
Mass = 19.53 g
Answer:
c
Explanation:
esuba is activation energy
The correct answer for the question that is being presented above is this one: "Electrovalency is characterized with the transferring of one or more electrons from one atom to another together with the formation of ions and as well as the number of positive and negative charges.
The Lewis and Langmuir theory of electrovalency (and as well as Kossel's) is dealing with Ionic bonds.
Lewis: electron-pair sharing, octet rule, Lewis Symbols or StructureLangmuir: introduced term "covalent" bond, and popularized Lewis's ideas
The Lewis-Langmuir electron-pair or covalent bond is referred as the homopolar bond, where the complete transfer of electrons give rise to ionic, or electrovalent bond (1) through attraction of opposite charges.