Answer:
hey...
Explanation:
Sodium carbonate (Na2CO3), also known as washing soda, can soften both temporary and permanent hard water.
It's a weak base bacause H C N is weak
The reaction is an unbalanced redox reaction hence, the reaction can be balanced by using the half-reaction method.
<h3>What is a redox reaction?</h3>
The term redox reaction refers to the reactionnin which electrons are transferred hence one specie is oxidized while the other specie is reduced.
Looking at the reation as shown, we can see that the reaction is an unbalanced redox reaction hence, the reaction can be balanced by using the half-reaction method.
Learn more about redox reaction: brainly.com/question/13293425
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As they contain, green pigement they can perform "Photosynthesis" and obtains energy from that process
Hope this helps!
No. When water first begins to cool down, it contracts. However, as it gets colder and eventually freezes, it begins to expand.
You can test this by freezing water in a water bottle: when you take it out of the freezer, the cap might have popped off or cracks may have formed in the sides of the bottle.
Answer: Water expands when frozen, not contracts.
