A, it says on here good luckkkkkk
Answer: D, splitting water into hydrogen and oxygen is a chemical change.
The answer is A hope this help
How many hydrogen atoms are involved in this reaction? 3
Answer:
The answer to your question is the letter A. 1
Explanation:
Data
Chemical reaction
(NH₄)₂CO₃ ⇒ NH₃ + CO₂ + H₂O
Reactants Elements Products
2 Nitrogen 1
1 Carbon 1
8 Hydrogen 5
3 Oxygen 3
This reaction is unbalanced
(NH₄)₂CO₃ ⇒ 2NH₃ + CO₂ + H₂O
Reactants Elements Products
2 Nitrogen 2
1 Carbon 1
8 Hydrogen 8
3 Oxygen 3
Now, the reaction is balanced,
The coefficient for Carbon dioxide is 1