Chemical equations
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Question 1 of 25
1. Question
What is a chemical equation?
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Question 2 of 25
2. Question
What are reactants?
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Question 3 of 25
3. Question
What are products?
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Question 4 of 25
4. Question
What do symbol equations help to do?
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Question 5 of 25
5. Question
What does it mean when an equation is balanced?
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Question 6 of 25
6. Question
What does it mean when an equation is unbalanced?
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Question 7 of 25
7. Question
What can atoms not be in a reaction?
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Question 8 of 25
8. Question
What can atoms not be in a reaction?
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Question 9 of 25
9. Question
What is the same for a chemical equation?
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Question 10 of 25
10. Question
What is it called when the total mass of the products form in a reaction is the same as the total mass of the reactants?
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Question 11 of 25
11. Question
What is the state symbol for a solid?
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Question 12 of 25
12. Question
What is the state symbol for a liquid?
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Question 13 of 25
13. Question
What is the state symbol for a gas?
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Question 14 of 25
14. Question
What is the state symbol for an aqueous solution?
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Question 15 of 25
15. Question
What is an aqueous solution?
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Question 16 of 25
16. Question
What can not be changed when balancing a chemical equation?
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Question 17 of 25
17. Question
How many state symbols are there?
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Question 18 of 25
18. Question
How many types of chemical equations can be written?
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Question 19 of 25
19. Question
Which of the following is a form of writing a chemical equation?
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Question 20 of 25
20. Question
Which of the following is a form of writing a chemical equation?
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Question 21 of 25
21. Question
Balance the following equation; CO2 + H2O → C6H12O6 + O2.
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Question 22 of 25
22. Question
Balance the following equation; H2 + O2 → H2O.
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Question 23 of 25
23. Question
Balance the following equation; H2 + Cl2 → HCl.
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Question 24 of 25
24. Question
Which part of a reaction comes first?
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Question 25 of 25
25. Question
Which part of a reaction comes last?