Want to see correct answers?

Looking for Chemistry worksheets?
Check out our pre-made Chemistry worksheets!
 Tweet
##### Filter By Grade

You are browsing Grade 10 questions. View questions in All Grades.

##### Browse Questions
• Arts (659)
• English Language Arts (3081)
• English as a Second Language ESL (1428)
• Health and Medicine (715)
• Life Skills (476)
• Math (1932)
• Physical Education (408)
• Science (6636)

• ### Stoichiometry

• #### Scientific Methods and Applications

• Social Studies (1573)
• Study Skills and Strategies (13)
• Technology (485)
• Vocational Education (1000)

# Tenth Grade (Grade 10) Reactions Questions

You can create printable tests and worksheets from these Grade 10 Reactions questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Previous Next
To balance a chemical equation, you may adjust the
1. coefficients.
2. subscripts.
3. formulas of the product.
4. either of coefficients or subscripts.
What happens to matter during a chemical reaction?
1. some matter is destroyed
2. matter is neither destroyed or created
3. some matter is created
4. some matter is destroyed and some is created
Which is the balance equation for the following reaction?

$KCl + Al rarr AlCl_3 + K$
1. $KCl + Al rarr AlCl_3 + 3K$
2. $3KCl + Al rarr 3AlCl_3 + K$
3. $KCl + Al rarr 3AlCl_3 + 3K$
4. $3KCl + Al rarr AlCl_3 + 3K$
What type of chemical reaction is $P + O -> PO$?
1. synthesis
2. decomposition
3. single replacement
4. double replacement
What type of reaction does the following equation represent?

$FeS + 2HCl rarr FeCl_2 + H_2S$
1. synthesis reaction
2. double-displacement reaction
3. single-displacement reaction
4. decomposition reaction
Which of the following is true for all chemical reactions?
1. The total mass of the reactants increases.
2. The total mass of the products is greater than the total mass of the reactants
3. The total mass of the reactants equals the total mass of the products.
4. The total mass of the products is less than the total mass of the reactants.
What type of reaction is $2Al + 6HCl rarr 3H_2 + 2AlCl_3$?
1. synthesis
2. decomposition
3. single replacement
4. double replacement
An exergonic (spontaneous) reaction is a chemical reaction that
1. is common in anabolic pathways.
2. cannot occur outside of a living cell.
3. occurs only when an enzyme or other catalyst is present.
4. releases energy when proceeding in the forward direction.
Which of the following includes an example of a chemical property of an element?
1. Aluminum is a solid at room temperature and is a poor thermal insulator.
2. Sulfur is not shiny and is not malleable.
3. Sodium is a solid at room temperature and reacts with other elements.
4. Silicon is shiny and is a poor conductor of electricity.
When water decomposes into hydrogen and oxygen, the mass
1. increases.
2. decreases if the temperature exceeds 100 degrees Celsius.
3. remains constant.
4. decreases its melting point.
1. $S_10 F_2$
2. $S_3 F_9$
3. $S_2 F_10$
4. $S_2 F_8$