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In-s [12.5K]
2 years ago
7

Bonding with intermolecular forces:

Chemistry
1 answer:
bekas [8.4K]2 years ago
8 0

Answer:

1. yes

2. yes

3. no

sorry if wrong but hope this helps

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Which word means the opposite of boiling melting​
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3 years ago
A sample of ammonium nitrate, weighing 25.2 g, was added to a 150.0 mL container of H2O at 20.0 °C, and then is thoroughly disso
OLga [1]

Explanation:

It is known that the relation between heat energy, specific heat and change in temperature is as follows.

                            q = m \times C \times \Delta T

where,         q = heat released or absorbed

                    m = mass of substance

                    C = specific heat

             \Delta T = change in temperature

It is given that mass is 25.2 g and it is added to 150 ml container so total mass will be (25.2 g + 150 g) = 175.2 g, T_{1} is 20^{o}C, T_{2} is 8.5^{o}C, and specific heat of water is 4.184 J/g ^{o}C.

Hence, putting the given values into the above formula as follows.

                  q = m \times C \times \Delta T

                     = 175.2 g \times 4.184 J/g^{o}C \times (8.5 - 20)^{o}C

                      = 175.2 g \times 4.184 J/g^{o}C \times -11.5^{o}C

                     = -8430 J

As, 1 J = 0.001 kJ. Hence, -8430 J will also be equal to -8.43 kJ. The negative sign indicates that heat is being lost.

Thus, we can conclude that heat (kJ) was lost by the solution (surroundings) is 8.43 kJ.

6 0
4 years ago
What is the electron configuration of an element with atomic number 20?
Sergeu [11.5K]

Answer:

answer: D

Explanation:

according to the aufbau principle the electrons should be filled

4 0
3 years ago
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