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irakobra [83]
3 years ago
8

Can someone match the following ????

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
4 0
I believe it the answer is 3412
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Look at the four chemical reactions.
frutty [35]

Reaction 3 is different from the rest and it is because a single product is synthesized.

Option 2

<u>Explanation:</u>

The reaction given in 1,2 and 4 are dissociation reaction where a single compound is getting split into two compounds. So all those three reactions are exothermic as they are breaking the bonds leading to release of energy to the surrounding. But the reaction 3 is a formation reaction, where two chemical compounds are forming a single compound.

So in this case, new bonds are formed leading to absorption of energy from the surrounding. So this is an endothermic reaction. Thus, reaction 3 is different from the rest and it is because a single product is synthesized.

8 0
3 years ago
How is motion detected
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It’s the process of detecting a change of a objects position relative to its surroundings
8 0
4 years ago
If substance A has a density of 2.3 g/mL and water has a density of 1.00 g/mL will substance A float or sink in water? Explain i
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Substance A will sink because it is more dense than water. An object that is more dense than water will sink and an object that is less dense than water will float.
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3 years ago
A gas at constant volume has a pressure of 2. 80 atm at 400. K. What will be the pressure of the gas at 360. K? 2. 52 atm 2. 94
katovenus [111]

Answer:

2.52atm for sure

Explanation:

We know that:

P1= 2.80atm

T1= 400k

T2= 360k

And we want to find P2= ?

We have an equation: P1/T1 = P2/T2

Multiple both side by T2 to remove it

P2 = 2.52

6 0
3 years ago
A brine solution of salt flows at a constant rate of 4L/min into a large tank that initially held 100L of pure water. The solutio
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Answer:

To reach 01.kg/L concentration of salt in the tank will take around 18.9 min

Explanation:

Attached

8 0
4 years ago
Read 2 more answers
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