giocheJohanBethia
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1) Why do many metals have high melting points?

a. The electrostatic forces between anions and cations hold the substance together tightly.

b. The electrostatic forces between multiple valence electrons and cations hold the substance together tightly.

c. The electrostatic forces between anions and cations hold the substance together loosely.

d. The electrostatic forces between multiple valence electrons and cations hold the substance together loosely.



2) Which of the following could be easily shaped into a piece of jewelry?

a. NaCl

b. Ag

c. CaF2

d. FeO


3. Which of the following has carbon atoms interspersed with iron atoms in its molecular structure?

a. bauxite

b. hematite

c. steel

d. malachite


4. Which substance would shatter if you hit it with a hammer?

a. table salt

b. steel

c. bronze

d. copper


5. In its native state, which of the following elements has bonds between many cations and a sea of valence electrons?

a. Cl

b. He

c. Zn

d. N

Respuesta :

taskmasters
1. "The electrostatic forces between multiple valence electrons and cations hold the substance together tightly" is the statement why many metals have high melting points. The correct option is option "b".

2. "Ag" is the one among the following that can be easily shaped into a piece of jewelry. The correct option among all the options is option "b". 

3. "Steel" is the one among the following that has carbon atoms interspersed with iron atoms in its molecular structure. The correct option is option "c".

4. "Table salt" is the substance that would shatter if you hit it with a hammer. The correct option among the options is option "a".

5. In its native state, "Zn" is the one of the following elements that has bonds between many cations and a sea of valence electrons. The correct option is option "c".

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