Element "X" reacts with element “Y" to form an ionic compound containing X** and Y²- ions. Write a possible formula for the compound and suggest to which "Group" in the Periodic Table, the elements X and Y may belong to?

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Chapter2: Matter And Energy
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### Chemistry Education Resources

#### 1. Describe the Importance of Green Chemistry
In a few lines, describe the **imminent importance** of "Green Chemistry" and its significance to society.

#### 2. Characteristics of Substances
Give two chief characteristics of:
- **Elements**
- **Compounds**
- **Homogeneous Mixtures**

#### 3. Classification of Substances
Classify each of the following as:
- (i) Element
- (ii) Compound
- (iii) Mixture

**List:**
- Rain Water
- Ocean Water
- Gold
- Table Sugar
- Milk
- Blood
- Technetium
- Air
- Aspirin
- Urea

#### 4. Lead Content Calculation
How many grams of "lead" are contained in \(6.0 \times 10^3\) grams of blood if the lead content of that sample of blood is 0.62 parts per million (ppm)?

#### 5. Sub-Atomic Particles Details
What are:
- (i) Mass
- (ii) Charge
- (iii) Location in the atom

For each of the following sub-atomic particles:
- (a) Electron
- (b) Neutron
- (c) Proton

#### 6. Explanation of Experiments
Briefly explain either:
- **(i) Thompson Experiment** OR
- **(ii) Rutherford Experiment**

Emphasize the discoveries that the experiment led to.

#### 7. Ionic Compound Formation
Element "X" reacts with element "Y" to form an ionic compound containing \(X^{4+}\) and \(Y^{2-}\) ions. Write a possible formula for the compound and suggest to which "Group" in the Periodic Table the elements X and Y may belong.

---

This information is designed to help students understand foundational concepts in chemistry and to practice problem-solving related to classifying substances, understanding sub-atomic particles, calculating concentrations, and more.
Transcribed Image Text:### Chemistry Education Resources #### 1. Describe the Importance of Green Chemistry In a few lines, describe the **imminent importance** of "Green Chemistry" and its significance to society. #### 2. Characteristics of Substances Give two chief characteristics of: - **Elements** - **Compounds** - **Homogeneous Mixtures** #### 3. Classification of Substances Classify each of the following as: - (i) Element - (ii) Compound - (iii) Mixture **List:** - Rain Water - Ocean Water - Gold - Table Sugar - Milk - Blood - Technetium - Air - Aspirin - Urea #### 4. Lead Content Calculation How many grams of "lead" are contained in \(6.0 \times 10^3\) grams of blood if the lead content of that sample of blood is 0.62 parts per million (ppm)? #### 5. Sub-Atomic Particles Details What are: - (i) Mass - (ii) Charge - (iii) Location in the atom For each of the following sub-atomic particles: - (a) Electron - (b) Neutron - (c) Proton #### 6. Explanation of Experiments Briefly explain either: - **(i) Thompson Experiment** OR - **(ii) Rutherford Experiment** Emphasize the discoveries that the experiment led to. #### 7. Ionic Compound Formation Element "X" reacts with element "Y" to form an ionic compound containing \(X^{4+}\) and \(Y^{2-}\) ions. Write a possible formula for the compound and suggest to which "Group" in the Periodic Table the elements X and Y may belong. --- This information is designed to help students understand foundational concepts in chemistry and to practice problem-solving related to classifying substances, understanding sub-atomic particles, calculating concentrations, and more.
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