Answer:
Explanation:
Explanation:
This is an excerpt from my lesson in science:
In an ionic compound, every ion is attracted to ions of opposite charge that surround it. It is attracted to ions above, below, and to all sides. The pattern formed by the ions remains the same no matter what the size of the crystal.
In a single grain of salt, the crystal pattern extends for millions of ions in every direction. Many crystals of ionic compounds are hard and brittle due to the strength of their ionic bonds and the attractions among all the ions.
Hence, it is unchanged. (Brainliest Please and 5 stars)
Answer:
It is unchanged
Explanation: gradpoint
The pattern formed by the ions remains the same no matter what the size of the crystal.
Answer:you need to write the equation of the reactions in each question.
you need to calculate the mol for each substance which mass for which mass is given
then you do mol ratio.
I hope this shows you a hint and helps you not to depend completely on brainly.
plz put me as Brainliest
Explanation:
Answer:
Scientist use the scientific method to test theories.
Explanation:
Scientists use a range of skills, primarily the scientific method, and tools, such as various lab equipment and technology, to conduct their research.
Scientists use a variety of skills and tools to conduct their research and investigations. The primary skill they possess is the scientific method, a systematic way of understanding the world around us, which involves observation, question formulation, hypothesis testing, data collection, data analysis and conclusion drawing.
As for tools, scientists use a range of laboratory equipment like microscopes and pipettes for biological research, telescopes for astronomical studies, spectrophotometers for chemical analysis, computers for data analysis, and more. Technology is greatly used in science as it aids in thorough and precise investigations.
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There are 12.052 ×10²³ atoms in 54 g of aluminium according to the concept of Avogadro's number.
Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.
It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .
According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.
Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number
Substituting the values in the formula,54/26.98×6.022×10²³=12.052×10²³ atoms .
Hence, there are 12.052×10²³ atoms in 54 g of aluminium.
Learn more about Avogadro's number ,here:
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