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.
A buffer works by bonding with the added H+ or OH- in solution
A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.
Hope this helps
136 g/mol
154 g/mol
164 g/mol
172 g/mol
172 is correct
Answer:
Option d = 172 g/mol
Explanation:
Formula mass of [CaSO₄.2H₂O]
Formula mass = 40.078 + 32.065 + 4×16 + 4 + 16×2
Formula mass = 40.078 + 32.065 + 64 + 4 + 32
Formula mass = 172.143 g/mol
so, 172 g/mol is the correct answer.
The formula mass of compound calcium sulfate dihydrate is 172 g/mole.
Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.
Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:
1)Molecular compounds where in atoms are joined by covalent bonds.
2) ionic compounds where atoms are joined by ionic bond.
3)Inter-metallic compounds where atoms are held by metallic bonds
4) co-ordination complexes where atoms are held by co-ordinate bonds.
The formula mass of compound = 40+32+16×4+4+32=172 g/mole.
Learn more about compound,here:
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Answer: Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).