SCIENCE(EN) – M3 – T1 – RASHA RAGAB
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المراجعات النهائية – الترم الأول
Revision – Unit 11 موضوع -
Revision – Unit 21 موضوع
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Revision – Unit 31 موضوع
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Model Exams4 المواضيع
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First term – UNIT 1 – FORCE AND MOTIONLecture 1 – Lesson One4 المواضيع
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Lecture 2 – lesson two4 المواضيع|1 اختبار
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Lecture 3 – Lesson three4 المواضيع|1 اختبار
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First term – UNIT 2 – LIGHT ENERGYLecture 4 – Lesson One | mirrors5 المواضيع|1 اختبار
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Lecture 5 – lesson 2 – lenses4 المواضيع|1 اختبار
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First term – UNIT 3 – THE UNIVERSELecture 6 – Unit 3| Universe4 المواضيع|1 اختبار
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First term – UNIT 4 – REPRODUCTIONLecture 7 – unit 4 lesson one5 المواضيع|1 اختبار
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Lecture 8 – unit 4| lesson 2 |reproduction2 المواضيع|1 اختبار
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سؤال 1 of 18
1. سؤال
A student heated a sample of lead carbonate in a test tube. He heated it until there was no further change, leaving a yellow solid in the test tube
What type of chemical reaction occurred?
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سؤال 2 of 18
2. سؤال
A student heated a sample of lead carbonate in a test tube. He heated it until there was no further change, leaving a yellow solid in the test tube
Which gas was produced during this chemical reaction?
صحيحغير صحيح -
سؤال 3 of 18
3. سؤال
A student heated a sample of lead carbonate in a test tube. He heated it until there was no further change, leaving a yellow solid in the test tube
What is the name of the yellow powder that remained in the test tube?
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سؤال 4 of 18
4. سؤال
What is the name of the liquid labeled X in the diagram, which is used to test for the presence of a gas given off during thermal decomposition?
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سؤال 5 of 18
5. سؤال
mercury oxide is being heated strongly to cause thermal decomposition. Which gas is being collected over water?
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سؤال 6 of 18
6. سؤال
Which two products are formed from the initial thermal decomposition of sodium nitrate (NaNO3)?
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سؤال 7 of 18
7. سؤال
In an experiment, a test tube containing copper carbonate is heated on a Bunsen burner flame. After a while, a glowing match is held just inside the mouth of the test tube. What will happen to the glowing match?
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سؤال 8 of 18
8. سؤال
In an experiment, four test tubes, each containing a different chemical compound, are heated. After heating for a while, a glowing splint is placed near the mouth of each test tube. Which test tube should result in the glowing splint reigniting?
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سؤال 9 of 18
9. سؤال
Consider the chemical equation
2KNO3 ———– +
What are its products?
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سؤال 10 of 18
10. سؤال
The chemical equation 2Na+2H2O ——-2NaOH+H2+heat
shows the reaction of sodium metal with water.
Which two elements or ions are substituted in this reaction?
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سؤال 11 of 18
11. سؤال
Which of the following statements best describes a substitution reaction?
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سؤال 12 of 18
12. سؤال
When a piece of sodium metal is placed into a large trough of cold water, a chemical reaction takes place. Which of the following statements best explains why this is the case?
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سؤال 13 of 18
13. سؤال
Order the metals barium, sodium, zinc, lead, and aluminum from least to most active according to your knowledge of their chemical activity
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سؤال 14 of 18
14. سؤال
Active metals tend to replace less active metals during single substitution reactions. Which of the following word equations does not describe a single
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سؤال 15 of 18
15. سؤال
Which of the following statements about oxidization and reduction is correct?
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سؤال 16 of 18
16. سؤال
What is the chemical process that involves an atom losing one or more electrons known as?
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سؤال 17 of 18
17. سؤال
Cl+2Na ——————2NaCl
Which chemical species is reduced in the reaction?
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سؤال 18 of 18
18. سؤال
H2+CuO ———-Cu+H2O
Which of the following statements correctly describes the hydrogen and the copper oxide during this chemical reaction?
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