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aev [14]
3 years ago
13

Help i give more point this time​

Chemistry
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:

It's a type of chemical bond that emerges because of electrostatic force between electrons and positive metal charges.

Explanation:

I don't know if this is what you are looking for but i don't mind if you copy it.

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3 years ago
If 18.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentra
k0ka [10]

<em>Answer:</em>

  • The molarity of ammonia will be 2.88 M.

<em>Chemical equation</em>

                                      HCl +  NH3 ------> NH4Cl

First of calculate the moles of HCl

mole of HCl = Molarity × Vol (L)

mole of HCl = 0.800× 0.018 = 0.014 mole

As the in balance chemical, moles of HCl and NH3 areequal

so

                        moles of NH3= 0.014

                       Molarity of NH3 = moles ÷ V(L) = 0.014/0.005 =  2.88 M

<em>Result</em>:

  • The molarity of ammonia will be 2.88 M.
3 0
3 years ago
Nitric acid is also found in acid rain. Write a word equation for the reaction of iron with nitric acid
Natasha_Volkova [10]

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What is the overall equation for this chemical reaction?
Lady bird [3.3K]
We combine the two equations, like we would any mathematical system of equations. After addition of the two equations, we get:
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Cancelling like terms from both sides

Mg + 2H⁺(aq) → Mg⁺²(aq) + H₂(g)
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Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C . Assume the specific heat capacity of cycloh
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Answer:

Q = 4.056 J

Explanation:

  • Q = m<em>C</em>ΔT

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∴ <em>C </em>= 1.85 J/g.K

∴ T1 = 33.5°C ≅ 306.5 K

∴ T2 = 38.9°C = 311.9 K

⇒ ΔT = 311.9 - 306.5 = 5.4 K

⇒ Q = (0.406 g)(1.85 J/gK)(5.4 K)

⇒ Q = 4.056 J

6 0
3 years ago
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