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3 years ago

Briefly describe metals

2 answers:

7 0

Answer:In chemistry, a metal is an element that readily forms positive ions (cations) and has metallic bonds. Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons. ... The traditional definition focuses on the bulk properties of metals.

Explanation:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

metal is a type of element to be percise M.O in the element periodic table

Explanation:

ur welcome

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Which of the following aqueous solution will have the highest boiling point

Sliva [168]

Ionic molecules have higher boiling point than covalent molecules.

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Na2SO4 have ions with charge +-2.

NaCl have ions with charge +-1.

So the answer is C.

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STatiana [176]

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4 years ago

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T/F___ At the eutectic composition, an alloy can solidify at a constant temperature.___ For effective dispersion strengthening,

azamat

Answer:

TRUE
FALSE
TRUE
FALSE
FALSE
TRUE

Explanation:

At the eutectic composition, an alloy can solidify at a constant temperature : TRUE . this is because at eutectic composition the type of reaction that takes place there is invariant reaction in its thermal equilibrium
For effective dispersion strengthening, the dispersed phase should be needle-like, as opposed to round : FALSE. because the rounded shape will not cause a crack.
Intermetallic compounds are usually hard and brittle : TRUE. because Intermetallic compounds prevents dislocation movements and this makes them brittle and hard
For the effective dispersion and strengthening, the dispersed phase should be continuous : FALSE. this is because the dispersed precipitate must be small and not continuous
Stoichiometric intermetallic compounds exist over a range of compositions : FALSE
Faster solidification results in smaller interlamellar spacing : TRUE

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3 years ago