The answer is actually 1 & 17, maybe you meant to put 1&17 as option b
The specific heat capacity of the substance is 
Explanation:
When an object of mass m is supplied with a certain amount of energy Q, its temperature increases according to the equation:

where
m is the mass of the object
is its specific heat capacity
is the increase in temperature of the object
In this problem, we have

m = 50 g

Therefore, we can solve for
to find its specific heat capacity:

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Answer:
light
Explanation:
Light is part of a spectrum of electromagnetic energy that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet "light", x rays, and gamma rays.
Your answer is...
<em>B) Electrons in valence shells are shared between nuclei.</em>
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Explanation:
The simple definition of a covalent bond is a strong force when two atoms share one or more pairs of electrons.
Popular examples of covalent bonds would be:
Carbon Monoxide (CO)
Methane (
)
Water (
)