Answer:
Combination or synthesis
Explanation:
The chemical reaction is given as:
2N₂ + O₂ → 2N₂O
From the reaction above we see that this is a combination reaction. In a combination reaction, two or more species combines to give a product.
- The formation of compounds from the union of their constituent elements falls into this category of reaction.
This combination reaction is also known as a synthesis reaction.
Answer:
9028.8 J
Explanation:
The equation for working out the amount of thermal energy required is q = m c Δ T , where q is the amount of energy, m is the mass being heated up in grams, c is the specific heat capacity of what you're heating up in joules per gram per kelvin, and Δ T is the change in temperature in Kelvin.(Change in temperature will always give the same value,no matter Celsius or Kelvin)
mass = 27g, assuming specific heat capacity of water is 4.18 J/g*K, and the change in temperature is 90-10(=80) , the energy needed to raise : 80 × 27 × 4.18 = 9028.8 J
Answer:
I-123 and I-131
Explanation:
Radioactive iodine takes advantage of the fact that thyroid cells and thyroid cancer cells absorb iodine; therefore, it has been used to diagnose or treat various thyroid disorders. Iodine is made into two radioactive isotopes, I-123 and I-131, that are commonly used in patients with thyroid disease.
Answer:
The answer <em>should</em> be 2. as a dying star explodes
Explanation:
I do not have this class, but I am knowledgeable when it comes to stars. A dying star undergoing an event known as a Supernova compresses the core of the star much further than normal, causing rapid fusion to occur. This is extremely prominent in very large stars, which form extremely heavy elements such as Gold and Uranium.
For more information, please see the following link(s): https://astronomy.com/magazine/ask-astro/2020/12/ask-astro-how-do-stars-make-elements-heavier-than-iron