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Semester 2 physical science exam

Authored by Wayground Content

Science

9th Grade

Used 1+ times

Semester 2 physical science exam
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which compound shows a correctly written formula between the atoms shown?

AlAr

AlAr3

AlCl

AlCl3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Combination

Decomposition

Single Replacement

Double Replacement

Combustion

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the starting materials in a chemical reaction

Products
Reactants
Starters
Enders

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If reaction starts with 20g of reactants it should produce... 

a total of 40g of product
a total of 10g of product
a total of 80 g of product
a total of 20g of product

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A chemical reaction that absorbs heat

Single replacement
Exothermic
Endothermic
Decomposition

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If the reactants on the left side of a chemical equation are C₃H₈ + 5O₂, the products in a balanced equation could be

4CO₂ + 3H₂O
3CO₂ + 4H₂O
2CO₂ + 3H₂O
3CO + 4H₂O

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is appropriate for determining the the IUPAC nomenclature for N2O?

Locate the position of the metal ion in N20.

The prefixes should be used for both nitrogen and oxygen.

Use Roman numeral II for the nitrogen since it has 2 atoms.

A prefix is only needed for nitrogen because each molecule

contains 2 nitrogen atoms.

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