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andrew11 [14]
4 years ago
9

Why do two objects with the same charge always repel each other?

Chemistry
2 answers:
Delicious77 [7]4 years ago
4 0
Because same charges repel each other while opposite charges attract. :)

Soloha48 [4]4 years ago
3 0
Well bcz some charges repeal each other while oppisite charges attract it the same thing at the other person said
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NARA [144]

Answer:

Diazonium salts are salts formed from aromatic primary amines by diazotization. Diazonium salts are not very stable but very reactive. It therefore serves as a starting material for the preparation of various derivatives of arenes, azo dyes and pharmaceuticals.

5 0
4 years ago
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If 200.0 g of copper(II) sulfate react with an excess of zinc metal, what is the theoretical yield of copper? 1.253 g 50.72 g 79
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1)we need a balanced equation: CuSO₄ + Zn ---> ZnSO₄ + Cu

2) we need to convert the grams of CuSO₄ to moles using the molar mass. 

molar mass CuSO₄= 63.5 + 32.0 + (4 x 16.0)= 160 g/mol

200.0 g CuSO_4 ( \frac{1 mol}{160 grams} )= 1.25 mol CuSO_4

3) convert moles of CuSO₄ to moles of Cu

1.25 mol CuSO_4 ( \frac{1 mol Cu}{1 mol CuSO_4} )= 1.25 mol Cu

4) convert moles of Cu to grams using it's molar mass.

molar mass Cu= 63.5 g/mol

1.25 mol (\frac{63.5 grams}{1 mol} )= 79.4 grams Cu

I did it step-by-step as the explanation but you can do all of this in one step. 

200.0 g CuSO_4 ( \frac{1 mol CuSO_4}{160 g} ) ( \frac{1 mol Cu}{1 mol CuSO_4} ) ( \frac{63.5 grams}{1 mol Cu} )= 79.4 grams Cu


4 0
4 years ago
What type of crust is bigger Continental or Oceanic
nadezda [96]
If you mean which of the two is denser, then you want the oceanic crust.
3 0
3 years ago
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A sample of 0.0020 mole of HCL is dissolved in water to make 2000 mL solution. What is the molarity of HCL solution, the H3O+, a
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3 years ago
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What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density
stellarik [79]

Answer:

328.4KJ

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Before we move on to calculate enthalpy change, we calculate the amount of heat Q

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c = 3.74J/g.k

ΔT = 7.80 + 273.15K = 280.95K

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The enthalpy change in the reaction is same as amount of heat transferred = 328.4KJ

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4 years ago
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