Chemistry - Form III Test

chemistry Test 1 -[Form III] 

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1 ...... is the mass of 11 mole of the substance

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D. Molar Mass - CORRECT!

A. Mass

B. Atomic Mass

C. Masses

D. Molar Mass

2. How many particles in 1 Dozen

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B. 12 - CORRECT!

A. 14

B. 12

C. 6

D. 2

3. A pure substance that can not be split in simpler particles by simple chemical means ..........

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C. Element - CORRECT!

A. Molecule

B. Atom

C. Element

D. Compound

4. Amount of substance that contains as many elementary entities as there are atoms of carbon in 12g of Carbon-12

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A. Mole - CORRECT!

A. Mole

B. Molar

C. Molecule

D. Molecularity

5........ is the constant number of particles of contained in 1 mole of a substance

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B. Avogadro's Number - CORRECT!

A. Atomic Number

B. Avogadro's Number

C. Mass Number

D. Neutron Number

6. find the Molar Mass(Mr) of the CaCO₃

A. 100 - CORRECT!

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A. 100

B. 98

C. 106

D. Radiant

7. find the Molar Mass(Mr) of the NaCl

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D. 58.5 - CORRECT!

A.62

B. 58

C. 55.5

D. 58.5

8. find the Molar Mass(Mr) of the MgCl₂

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C. 112 - CORRECT!

A. 111

B. 110

C. 112

D. 105

9. find the Molar Mass(Mr) of the KCl

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B. 75.5 - CORRECT!

A. 65.5

B. 75.5

C. 74.5

D.80

10. find the Molar Mass(Mr) of the HCl

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C. 36.5 - CORRECT!

A. 32

B. 35

C. 36.5

D. 38

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