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s2008m [1.1K]
3 years ago
5

Which statement describes the relationship between bond strength and the melting and boiling points of a substance?

Physics
2 answers:
kogti [31]3 years ago
6 0
I think the answer will be B or C?
Nady [450]3 years ago
4 0

Answer:

D

Explanation:

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Raising 100 grams of water from 40 to 60 °C (the specific heat capacity of water is 1
faust18 [17]

Heat in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1)
Heat = 100(1)(60-20)
<span>Heat = 4000 calories addition to the system</span></span>

<span><span>
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<span><span>Hope this answers the question. Have a nice day.</span></span>

4 0
3 years ago
A bag is dropped from a hovering helicopter. After 42.4s, calculate the bag’s displacement.
Ann [662]

Answer:

8,809.024m

Explanation:

Displacement , y = (gt^2/2 )

g = 9.8 m/s^2

t = 42.4s

y = (9.8 (42.4*42.4)) / 2

y = 8,809.024m

3 0
3 years ago
Which of the following statements is true?
kupik [55]

Answer:

2. The hydrogen atom has quantized energy levels.

Explanation:

The Bohr model of the atom states that the structure of the atom is quantized, that is, that electrons can only orbit the nucleus in specific orbits with a fixed radius. Therefore, the electron cannot be in energy levels that do not correspond to these quantized levels.

4 0
4 years ago
Air that enters the pleural space during inspiration but is unable to exit during expiration creates a condition called a. open
sertanlavr [38]

Answer:

The correct answer is d. tension pneumothorax.

Explanation:

The increasing build-up of air that is in the pleural space is what we call the tension pneumothorax and this happens due to the lung laceration that lets the air to flee inside the pleural space but it does not return.

4 0
3 years ago
Fundamentally, pressure is defined as force per unit area. What is the source of the force in a gas sample? A) The force is from
Artist 52 [7]

Answer:

Option C

Explanation:

Given

Pressure = Force /Area

For any gas sample, force is defined as basically the force exerted by the gas molecules when they strike the surface (with in which they are contained) and bounce back.

Hence, Option C is the correct

6 0
3 years ago
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