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3 years ago

What type of reaction takes place when melting a solid

Chemistry

2 answers:

Readme [11.4K]3 years ago

6 0

It turns into liquid

s344n2d4d5 [400]3 years ago

5 0

A physical reaction I think

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Ik i already asked this but i need diff point of views

salantis [7]

Answer:

Is it prescribe to you?If so than yes if not then no need to

Explanation:

5 0

2 years ago

Read 2 more answers

If HCl is a 0.05 M solution and 50 mL is used to titrate the NaOH, what is the molarity of NaOH if the flask contains 100 mL?

Liono4ka [1.6K]

Answer:

Molarity of NaOH = 0.025 M

Explanation:

Given data:

Molarity of HCl = C₁ = 0.05 M

Volume of HCl = V₁= 50 mL

Molarity of NaOH = C₂=?

Volume of NaOH =V₂= 100 mL

Solution:

Formula:

C₁V₁ = C₂V₂

C₁ = Molarity of HCl

V₁ = Volume of HCl

C₂ = Molarity of NaOH

V₂ = Volume of NaOH

Now we will put the values:

C₁V₁ = C₂V₂

0.05 M × 50 mL = C₂ × 100 mL

2.5 M.mL =C₂ × 100 mL

C₂ = 2.5 M.mL /100 mL

C₂ = 0.025 M

7 0

3 years ago

15g baking soda is dissolved in 100 mL water. The solute of the

Mumz [18]

Answer:

Baking soda

Explanation:

5 0

2 years ago

The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal. T

SVEN [57.7K]

The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal is True.

<u>Explanation:</u>

Nuclear Fission is the process in which splitting of a nucleus takes place that releases free neutrons and lighter nuclei. The fission of heavy elements like "Uranium is highly exothermic" and releases "200 million eV" compared to the energy that is released by burning coal which gives a few eV.

In the given example, it is obvious that the energy released from 1 gram of uranium is more than that of the energy released from 3 grams of coal because the amount of energy released during nuclear fission is millions of times more efficient per mass than that of coal considering only $\frac{1}{10}^{th}$ part of the original nuclei is converted to energy.

5 0

2 years ago

How many molecules of ammonia are contained in 10.4 moles of ammonia, NH3?

Crank

Answer:

The answer is " $\bold{6.26 \times 10^{24} \ molecules \ NH_3}\\\\$ "

Explanation:

1-mole molecules as per Avogadro number $= 6.02 \times 10^{23} \ molecules\\\\$

1-mole $NH_3 \to 6.02 \times 10^{23} \ molecules\\\\$

$10.4 \ moles \ of \ \ NH_3 :$

$\to \frac{ 6.02 \times 10^{23} \ molecules }{ 1 \ mole\ NH_3} \times 10.4 \ mole \ NH_3\\\\ \to 6.02 \times 10^{23} \ molecules \times 10.4\\\\\to 62.608 \times 10^{23} \ molecules \\\\\to 6.26 \times 10^{24} \ molecules \ NH_3\\\\$

6 0

2 years ago