1. look at the two elements in each name. determine if they combine to make an ionic or covalent compound.
1. sodium hydroxide
a. ionic
b. covalent
2. hexaboron silicide
3. hydrogen iodide
4. chromium (iii) chloride
5. aluminum sulfide
6. astatine tribromide
7. copper (ii) chlorite
8. zinc phosphate
9. carbon disulfide
10. manganese carbonate

Question

Accepted Answer

### 1. sodium hydroxide
# Brief Explanations:
Sodium (Na) is a metal, and hydroxide ($\ce{OH^-}$) is a polyatomic ion. Ionic compounds form between metals (or polyatomic cations) and non - metal anions (or polyatomic anions). So sodium hydroxide is ionic.
# Answer:
a. Ionic

### 2. hexaboron silicide
# Brief Explanations:
Boron (B) and silicon (Si) are both non - metals. Covalent compounds are formed between non - metals by sharing electrons. So hexaboron silicide is covalent.
# Answer:
b. covalent

### 3. hydrogen iodide
# Brief Explanations:
Hydrogen (H) and iodine (I) are both non - metals. They form a covalent compound by sharing electrons.
# Answer:
b. covalent

### 4. chromium (III) chloride
# Brief Explanations:
Chromium (Cr) is a metal, and chloride ($\ce{Cl^-}$) is a non - metal anion. Ionic compounds are formed between metals and non - metal anions. So chromium (III) chloride is ionic.
# Answer:
a. Ionic

### 5. aluminum sulfide
# Brief Explanations:
Aluminum (Al) is a metal, and sulfide ($\ce{S^{2 - }}$) is a non - metal anion. Metals and non - metal anions form ionic compounds. So aluminum sulfide is ionic.
# Answer:
a. Ionic

### 6. astatine tribromide
# Brief Explanations:
Astatine (At) and bromine (Br) are both non - metals. Non - metals form covalent compounds by sharing electrons. So astatine tribromide is covalent.
# Answer:
b. covalent

### 7. copper (II) chlorite
# Brief Explanations:
Copper (Cu) is a metal, and chlorite ($\ce{ClO_2^-}$) is a polyatomic anion. Ionic compounds are formed between metals and polyatomic anions. So copper (II) chlorite is ionic.
# Answer:
a. Ionic

### 8. zinc phosphate
# Brief Explanations:
Zinc (Zn) is a metal, and phosphate ($\ce{PO_4^{3 - }}$) is a polyatomic anion. Metals and polyatomic anions form ionic compounds. So zinc phosphate is ionic.
# Answer:
a. Ionic

### 9. carbon disulfide
# Brief Explanations:
Carbon (C) and sulfur (S) are both non - metals. Non - metals form covalent compounds by sharing electrons. So carbon disulfide is covalent.
# Answer:
b. covalent

### 10. manganese carbonate
# Brief Explanations:
Manganese (Mn) is a metal (forms a cation), and carbonate ($\ce{CO_3^{2 - }}$) is a polyatomic anion. Ionic compounds are formed between metal cations and polyatomic anions. So manganese carbonate is ionic.
# Answer:
a. Ionic

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QUESTION IMAGE

Question

Explanation:

1. sodium hydroxide

Answer:

2. hexaboron silicide