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yKpoI14uk [10]
3 years ago
7

In which picture(s) will you find a state of matter that has particles who have more energy than liquid water?

Chemistry
2 answers:
marysya [2.9K]3 years ago
7 0

Answer:

a) b and c

Explanation:

kari74 [83]3 years ago
5 0

a and c////////////////////////

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What is the Net Ionic equation for this chemical reaction: FeBr2+Na2S=FeS+2NaBr​
Artyom0805 [142]

Answer: Fe<em>(aq)</em>+S<em>(aq)</em>=FeS<em>(s)</em>

Explanation: The Sodium and Bromine are spectator ions because they don't react with anything, you can see this by writing the ionic equation like so:

1.) Molecular formula (given): FeBr2 (aq)+Na2S (aq)= FeS(s)+2NaBr(aq)

Each dissolved FeBr2 breaks up into one Fe with a charge of 2+ and two Br with a negative charge. This gives you:

Fe(aq)+ 2Br(aq)+Na2S(aq)=FeS(s)+2NaBr

2.) Now repeat what was shown with the other compounds in the given molecular formula, and pay attention to the states that each ion is in (solid, liquid, aqueous, gas) because this will give you the ionic equation, which from there you can get rid of any ions that don't change amount or state.

3.) Ionic formula: Fe(aq)+ <u>2Br(aq)</u>+<u>2 Na(aq)</u>+S (aq)=FeS(s)+<u>2 Na(aq)+2Br(aq)</u>

4.)When you've derived a total ionic equation (above), you'll  find that some ions appear on both sides of the equation in equal numbers. For example, in this case two Na cations and two Br anions appear on both sides of the total ionic equation. What does this mean? It means these ions don't participate in the chemical reaction. They're present before and after the reaction. Nothing happens to them. So those are removed and you're left with the net ionic: Fe(aq)+S(aq)=FeS(s)

Hope this helps :)

7 0
2 years ago
Drag the tiles to the correct boxes. Not all tiles will be used.
gizmo_the_mogwai [7]

Answer:

metre measures length

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Explanation:

I have matched correctly. Just check SI units and there measures.

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2 years ago
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B. Flooding

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Flooding can be caused by heavy rains/storm surges. Hope this helped!

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Answer:

Here is your answer mate :D

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