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kirill115 [55]
3 years ago
7

Ice melts after adding heat. The free energy is ————— !

Chemistry
1 answer:
katovenus [111]3 years ago
4 0
Answer: F. Endothermic…………………
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Polarity occurs in which type of bond?
Burka [1]
Polarity occurs in a Hydrogen Bond
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3 years ago
What is the concentration of a solution that is 0.25 moles of HCL added to 3.00L of water?
Lina20 [59]

Answer: 0.08 M

Explanation:

\text{molarity}=\frac{\text{moles of solute}}{\text{liters of solution}}\\\\\text{molarity}=\frac{0.25}{3.00}\\\\\text{molarity}=\boxed{0.08 \text{ M}}

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2 years ago
What is force?.......<br><br>​
snow_tiger [21]

<em>Force is a push or pull which changes or tend to change the position of a body...</em>

4 0
3 years ago
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Atom 1 has 19 electrons 19 protons and 20 neutrons atoms 2 has 19 electrons , 20 neutrons and 19 protons
LekaFEV [45]

Answer:

Atom 1: Potassium (K)

Atom 2: Same thing

Explanation:

Potassium has an atomic number of 19 and mass number of 39.0983.

7 0
3 years ago
A 1.0 mol sample of X(g) and a 1.0 mol sample of Q(g) are introduced into an evacuated, rigid 10.0 L container and allowed to re
nadezda [96]

Answer:

[R] = [Z] > Q

Explanation:

Given the equilibrium:

                        X(g) + 2 Q(g) ⇄  R(g) + Z(g)

The equilibrium constant will be given by:

Kc = 1.3 x 105 at 50ºC =  [R] x [Z] / ( [X] x [Q]² )

This value is telling us that at equilibrium the products quantities will be much higher than the reactants.

Looking at the answer choices we see that (a) is false since this is an equilibrium not a areaction that goes to completion;(b) is is false because again this is an equilibrium and it would also imply that Kc is one; (c) is false because in the reaction the ratio is 1X : 2Q.

The last choice is the true statement since the equilibrium constant favors the products. This statement would haven true if Kc had been much less than one.

6 0
4 years ago
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